410

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410 is the HTTP status code for GONE, meaning whatever URL was requested is not there any more, and used in webmention CRUD to indicate that a source has been deleted.

"Any more" is important. A 410 response differs from a 404 in that a 404 states that the resource doesn't exist but lacks context on whether it might have existed in the past or future. A 410 states that the resource no longer exists, but did in the past.

That also implies that the current server has knowledge on the past state of the requested URL.

Contents 1 IndieWeb Examples 2 Silo Examples 2.1 GitHub 3 See Also

IndieWeb Examples

Examples of IndieWeb sites serving permalinks with status code 410 to indicate deletion.

• ...

Silo Examples

GitHub

GitHub uses 410 for removed features, e.g.:

• https://github.com/snarfed/color/branches/references

See Also

• HTTP
• webmention
• deleted