HTTP Link Header Workbench

How to use HTTP Link Header Workbench

Inspect Link targets, relation types, anchors and UTF-8 titles using a supplied response URI. Resolve targets and anchor contexts independently against the original response URI, preserve quoted commas and repeated language hints, and apply the first occurrence rules for core attributes.

1. Provide response uri, link field value.
2. Choose the supported mode and run the tool. Review its assumptions and any reported errors.
3. Copy the result or download a separate output; reset to clear the current form.

Good to know

• 20 KB of printable ASCII field text, 100 link members and 100 parameters per member. This strict profile refuses malformed members instead of emulating browser error recovery.
• Target and context URIs must resolve to HTTP(S), without user information or IPvFuture hosts. A supplied base fragment is refused. Other URI schemes and anonymous link contexts are outside this profile.
• UTF-8 title* is decoded and preferred over title. Invalid extended titles are reported and leave a plain-title fallback available. Language tags receive syntax checks only; no IANA registry is embedded. Other extension attributes remain uninterpreted.
• Relations are case-normalized for comparison; registry membership and target media types are not verified. An anchor changes the context, never the target resolution base. No request or preload is initiated.
• Inputs are processed on this device and are not automatically saved or uploaded.