Error Code Portal

Sources and coverage

4,836 codes · 14 products · Checked on: 2026-11-12

Included lists

How to read this reference

Codes, names, and descriptions were extracted from official documentation. Korean product context and link categories were added. Original descriptions remain in English. Coverage of every code for every product and version is not guaranteed. The source may be updated before this copy.

Translated explanations are marked as automatic translations.

Status codes are labeled separately in official lists that mix success, warning, and error codes. Check the original documentation for the support status of legacy codes as well.

“Troubleshooting steps” links to official troubleshooting documentation for a specific code; “General diagnostic guide” covers the product as a whole; “Code reference” provides definitions. Reference documentation is not treated as a solution. Do not disable security settings or delete data without administrator approval.

Windows code formats

For easier searching, hexadecimal and FACILITY_WIN32 HRESULT forms were added for Win32 and Windows Installer return codes. Installation message numbers are not converted. The mapping follows the official HRESULT_FROM_WIN32 documentation. Even when numbers match, the API and product must also match.

JSON data

Code list · Source list · Schema and scope

Official sources: 84 items

Tutorial - Debug system error codes ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 4e2044e09bc479debbd2110229b068ab66c36dad2a396e8c714d002fbe9a1d57

System Error Codes (0-499) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 01ee28615b6cb98f5e043a80dd48a534a9bb55d5bc75c279953a3423d838d12d

System Error Codes (500-999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 0adf1a67a962b193abbcbee644625cc6db1e87541df61201ede41a9be0c0b19f

System Error Codes (1000-1299) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: c62bc70df55a2e4878ddaad84a549e137cb190f96af82da037a5893aad2554db

System Error Codes (1300-1699) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 58e1a9167bb83d7a8c7a77455e0303f484953e940f5e83ba81213823868f3b1f

System Error Codes (1700-3999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 947491494fa3ac2b8f420b8e3aca79928493d9950efd8c426d9c77b2cdd43cdd

System Error Codes (4000-5999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: a66617b1037d8fc064fc75e71bc5e19d62050f55826eb7a7af66f7f052c14455

System Error Codes (6000-8199) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 14765342ad9a0482232d3c2d4b7fc317ce2c7de0760ced70960dadb16b294a07

System Error Codes (8200-8999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 24894e68506a718023e7142e0094444d4e6fefd2e2c7d786a03bf03e1e8754ad

System Error Codes (9000-11999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: ea09d429278aca34a0a98257b6c0b070a94c59342725ef2c7bcf0c7621a6eeaf

System Error Codes (12000-15999) (WinError.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 1d2d14c0be7eba38f802481021e5164b7045ea874336e31a005c291cd1b069a3

Windows Installer Error Messages (for Developers) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 831a25a8e78a3d9e4bbb8565ef209ad79f4e66267ae920acebbe239aa140daf2

MsiExec.exe and InstMsi.exe error messages (for developers) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 97d886d8781a32365e57efd7071b13da8738756d3f431abd5bd428a31bc8804b

Windows Installer Logging ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 4e4fbc31ef1791809738458e29b34fe2c27e9c21313f906109dd84924676f2ad

Error Messages (Wininet.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 7141947cb24eafc9496c25e2e5ddc222475d08e081d2ba10cfae69ab486a60be

Error Messages (Winhttp.h) ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 3440fb278a3d85809848932b8604e426f57511712cd594eb815808dadb0835f2

Collect WinHTTP traces ↗

Microsoft and MicrosoftDocs contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source SHA-256: 60592cf80be7678d62d339f07196a20f405ebff668e766a506e4cf3350c55b90

Errors | Node.js v26.13.1 Documentation ↗

Node.js contributors; Joyent, Inc. and other Node contributors · 2026-11-12
MIT License (Node.js documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: e97190ed3ec7f4b6ddde89de0f81f15bd38d5bb8de853fc919346d3019fb61f2

PostgreSQL: Documentation: 18: Appendix A. PostgreSQL Error Codes ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 14687cf3ded0d584289f884f263e7ca5b7c24c5a102aaaf53c950a8015a6e668

Result and Error Codes ↗

SQLite authors / Hwaci · 2026-11-12
Public domain dedication (SQLite code and documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 05ce13c1b04b1c7ea074f2155e979482512946634590dfe86f99af5e36e93b23

Built-in Exceptions — Python 3.15.2 documentation ↗

Python Software Foundation · 2026-11-12
Python Software Foundation License Version 2 · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: dee4e52e4a0d01db6c1ae00fec260b6f628700d534f3ed1a336ad1cfe146c512

8. Errors and Exceptions — Python 3.15.2 documentation ↗

Python Software Foundation · 2026-11-12
Python Software Foundation License Version 2 · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: d43ad52f3271f42c2014abc7469408b551b8de60178a0392a0734d37b532d5a6

PostgreSQL: Documentation: 18: 54.8. Error and Notice Message Fields ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: e0309a98628a53a40d20fd5a63f3cd211d59ab6e8930baec3fee04d0d7224ac7

PostgreSQL: Documentation: 18: 13.5. Serialization Failure Handling ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 8b6a1bf225f458d31256aa6bcfbac3fa645a82f9b83b9d4f630a86cbdd749228

PostgreSQL: Documentation: 18: 20.16. Authentication Problems ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 158d272a1205f10ccd146a15ebfb8622a3ccc024da0e9924d31180966f657e9d

PostgreSQL: Documentation: 18: 5.5. Constraints ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: bfa47acf38b1234630dcc076aeb172314bbd4949c28984755b5eea04b6ccf023

PostgreSQL: Documentation: 18: 13.3. Explicit Locking ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 2c7ed0375df946ee8ec85f82ce6a1b045ad6001ad595ccf52845f709dbead4b5

PostgreSQL: Documentation: 18: 5.8. Privileges ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 42708d1777f1c868468f8797f05370cf6b6ee8257ea19132a2d7d0089b45a636

PostgreSQL: Documentation: 18: 19.8. Error Reporting and Logging ↗

PostgreSQL Global Development Group; The Regents of the University of California · 2026-11-12
PostgreSQL License · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 8bb1e471d284c1ba4ae651ab348012f2e51941a95dcd9b2086e654240e8c7942

Permissions | Node.js v26.13.1 Documentation ↗

Node.js contributors; Joyent, Inc. and other Node contributors · 2026-11-12
MIT License (Node.js documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 2be10244f5db0811385900e3703290e8e48ec7adc2f4b4030eee5560f4579bdf

Modules: CommonJS modules | Node.js v26.13.1 Documentation ↗

Node.js contributors; Joyent, Inc. and other Node contributors · 2026-11-12
MIT License (Node.js documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 197682b58013f739952890a670916f5ddc648c2a7977abcf6358afac154d1cc7

TLS (SSL) | Node.js v26.13.1 Documentation ↗

Node.js contributors; Joyent, Inc. and other Node contributors · 2026-11-12
MIT License (Node.js documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: baf9ac91847a6c16044198265c2a8e8c5482c38b12681c75c4d2b8b10be08c97

Stream | Node.js v26.13.1 Documentation ↗

Node.js contributors; Joyent, Inc. and other Node contributors · 2026-11-12
MIT License (Node.js documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: cc354630dcea93f6a232ff2bf21d6e6981cec9f09a560fd02cede638f4978cc7

Set A Busy Timeout ↗

SQLite authors / Hwaci · 2026-11-12
Public domain dedication (SQLite code and documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 751a6ae8d5a18975af74dbf88f08ce99e0af11e21ba52be879ee11824025d1d1

Recovering Data From A Corrupt SQLite Database ↗

SQLite authors / Hwaci · 2026-11-12
Public domain dedication (SQLite code and documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 284e7952ee9d9297f8f9a881198e9d90e22fdc6ad81670c2aae22d0b64d824b3

SQLite Foreign Key Support ↗

SQLite authors / Hwaci · 2026-11-12
Public domain dedication (SQLite code and documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: cf9c6701a2bcc3b6407900c46d83c81818adb6467cd8fe11f8edfe9b93229041

The ON CONFLICT Clause ↗

SQLite authors / Hwaci · 2026-11-12
Public domain dedication (SQLite code and documentation) · Collected source text

Changes: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source SHA-256: 772b9b3f407bed4cdf59a32f1dd5828c3bc8293744bc40a3f25d07e15973b75f

Microsoft Entra authentication and authorization error codes ↗

Microsoft Corporation and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted official AADSTS table; Markdown stripped; short English error name selected; original Korean product context added. Official general diagnostic guide is distinguished from code-specific troubleshooting. Documentation license explicitly granted by README Legal Notices; repository LICENSE currently contains MIT terms, also retained as evidence.

Source SHA-256: 2800d76c46c83c6a6ac7c192ae6bca272efff8b8b48ae4b1929908bd56e5945e

Firebase Admin Authentication API Errors ↗

Google LLC · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted official error code and description/resolution table; HTML stripped; short code name and original Korean context added. No source-page analytics scripts are redistributed in rendered pages.

Source SHA-256: 54895f68303f81703c0b2af12c9be398038fc7e06a2341513d9738ef1eb5843c

Google APIs canonical google.rpc.Code status definitions ↗

Google LLC · 2026-11-12
Apache License 2.0 · Collected source text

Changes: Extracted enum names, numeric aliases, and official source comments; comment syntax removed; original Korean contexts added. Successful OK is labeled status, not error.

Source SHA-256: 83a63185b83cf7332196fc5ead0ec91b93ac207fbe91b3d5bc3d72f461b0bb31

Error 1000: DNS points to prohibited IP ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: d17111c09b24d23055bce03b81cd8c9559354519b4414985791989ccbae7b23f

Error 1001: DNS resolution error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 87dd61002dc0428d49f32ca3bccdd25d2727ecd38dfccaddaf144bb4579ae231

Error 1002: DNS points to Prohibited IP ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 0786eab3cc8c356f4cadd117c74e53ed8d79b1ccf14dfee5482fed7df788a8d3

Error 1003 Access Denied: Direct IP Access Not Allowed ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 5b5c05cbe3d88035ff503951851ecf947f4e91f6bb2401cf7ee218a0037c1af3

Error 1004: Host Not Configured to Serve Web Traffic ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 096b9ae22e3dfeb98d789be35232ebb21a0506a1357c37e93e2f97d8f261a74b

Errors 1005 Access Denied: Autonomous System Number (ASN) banned ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: beb137ef57f851ebf532c1b2451186f0426267545fb96dc98590523c0cea1a3d

Errors 1006, 1007, 1008 or 1106 Access Denied: Your IP address has been banned ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 4ba4c97a93dd4d7e8a21a512c0db5e9fc26f9eabe67a1462623bc5d8570b29eb

Errors 1009 Access Denied: Country or region banned ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 1b6953c149080d2fe8a3c42652941eb6491380a554f1865e15129cafb0d4a8f9

Error 1010: The owner of this website has banned your access based on your browser's signature ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 23f5c56aeeb7182c2a565699a7da257ca19fa43ec2d81998dae2f3e9e8fe5127

Error 1011: Access Denied (Hotlinking Denied) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 4b435fef24660baff3b7fb02bb32b8e40bcd8d4ddfb9466f82ad7e6ed9404def

Error 1012: Access Denied ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 93eb113ba02e556ae34cc38a0e1d4950c06de84b0951adc5ed5c5e9b7518eb05

Error 1013: HTTP hostname and TLS SNI hostname mismatch ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: a0378956bca333fbc98580a52651c4aff3fb3e7ae41a8050c1f057c5eb6d723d

Error 1014: CNAME Cross-User Banned ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 99785272bc752563607ceeddbab47b1134ff71b4e22b90a9dfe381fd9ddc9695

Error 1015: You are being rate limited ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 26cf9355b62f559b62cf5183bce002b5dd3a3141ac45be597f22996a2031c363

Error 1016: Origin DNS error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: c939d0fb447d280fb72b37c46fb4d476b0596413b075b72a6b5b656dc46e41d2

Error 1018: Could not find host ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 8b7fecf51b8383070da8753277fa87ec330fb31da8b1733556325534beca3752

Error 1019: Compute server error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 56574e84fca4a0fad502f594a2d91502286cd3f8e392a3944574faaba778750e

Error 1020: Access denied ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: eb8e571a8756cd83cc1754b8c666fec61d4fb0baef8abf16727a8d1658afd7ef

Error 1023: Could not find host ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: facd29db47ff41e6e35d49048c6ede16318892f8eaedc65b0da8c433a8ca8486

Error 1025: Please check back later ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 285409ac23dfc85a5b997d8221652c6e4a5c10cdd5ea5ec471ede0ea8cbe792b

Error 1033: Cloudflare Tunnel error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 12712e4b1df9f351deb50019f2ff761db743c02a9bd648e3fd1db998fc567620

Error 1034: Edge IP Restricted ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: f4b00b119eb27cd434a3558a60f4163c0c43d8b9edbbb071b8b38a297edf1908

Error 1035: Invalid request rewrite (invalid URI path) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 6020a46caf5da08d54901fed1b6144fa4310aca7dd5aa5109c6d560343935bd3

Error 1036: Invalid request rewrite (maximum length exceeded) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 4f26d486da7241ef94214807394bab0811c946c45d310d71b8b8cce17bc3769a

Error 1037: Invalid rewrite rule (failed to evaluate expression) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 661b9284261761571474528979da0cfebe0054f7a6b3bc66c68277661c87d6b3

Error 1040: Invalid request rewrite (header modification not allowed) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 6e86c9ebf2fb35861cecdfd3ad7d24dd7b10a7882626a3ba2f442d26f488d6f3

Error 1041: Invalid request rewrite (invalid header value) ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: baa3191b7787be0755e7325ffa9502c25bfc7945077220f867de0ba584b2c5b3

Error 1101: Rendering error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: de071e84442814fda9423c401b7832cd94633adc15a9e065266467dfc613f2b8

Error 1102: Worker exceeded resource limits ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 0c807b3be1214f2341a410f9ff7b1d33580590a5d22d4fd9354a00f52d888738

Error 1200: Cache connection limit ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 6327625d4b1ee73e543c0639398951febc042f1c6e5ef53296ba216ef1e13755

Error 1104: A variation of this email address is already taken in our system. Only one variation is allowed. ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 8e19f41696c84595101d558e0c56ef709997216c667d47bb44246ef4e6f7acb2

Error 500: internal server error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 935bd9b11abb0c54f13996ca3f229cb60eca7507ca02026d5e1cac82a63b9188

Error 501: not implemented ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 5b9f379444b50a83fef78fd84ed17568c4febf1b0edc8670b8a93a1601411100

Error 502 bad gateway or error 504 gateway timeout ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: b56441d370cfe50a1c30d705e807fe8ff362915abe88f3b93b36b8e6606d80e1

Error 503: service temporarily unavailable ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 869acb8cd960aa2045179ee663b51a2e02fa0c89a8e076d4b30eeed7108448a7

Error 520: web server returns an unknown error ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: e2c0e572eb0287456464f23e185acb5368ad7f7310a188d95bff4e7c3cf42769

Error 521: web server is down ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: dd326cc9b242d02cf3a01506fb803a3789bd51a85393ef854100894be90cd735

Error 522: connection timed out ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: a45873d0dfe70275a85f7502ba7aa54e62f50dfc1ee561373b7e44ab5fa25fef

Error 523: origin is unreachable ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 02952da76ec30b8f5dac913dd8709c0f111afe2a287c357116f52d9647e75e7b

Error 524: a timeout occurred ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 259435edd1341b72c593b2a6e6973ee754463572888f8464308726cd310a32c0

Error 525: SSL handshake failed ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: d3a87bec0bd7083347c5cefb8d7b937f377b87e9bd6f13d2f02b0ce2b73a446c

Error 526: invalid SSL certificate ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 4f628a870834f48edaa5392b3481636177b2e243e9e18f02f3ce628351bca14c

Error 530 ↗

Cloudflare, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Selected introductory official description; Markdown stripped; original Korean product context added. Direct official error page retains the complete cause and resolution instructions.

Source SHA-256: 8d9ede32ca778af80d1f34171daa13eb150d8369a5da6f5ba9eded8ae1d8d1b4

GitHub REST API validation error codes ↗

GitHub, Inc. and contributors · 2026-11-12
Creative Commons Attribution 4.0 International · Collected source text

Changes: Extracted the six official errors[].code values from the Validation Failed table; Markdown stripped; original Korean descriptions added. These are REST validation codes, not invented top-level API codes.

Source SHA-256: c8b47b94bd99c3c4cbe42adaa4599aba8f54b179a877d35db4b8d6132f154501