Tool #151 · HTTP + SEO + performance

Link Header Builder & Resource Hint Generator

Build valid Link headers for preload, preconnect, canonical URLs, pagination, alternate locales, and more. Get matching HTML <link> tags, server snippets, and implementation notes in one place.

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Add a link relation

Create one entry at a time, then combine them into a production-ready header string.

Target URL

Primary relation

as attribute

MIME type

crossorigin

fetchpriority

media query

hreflang

title

imagesrcset / responsive source

Internal note

nopushUseful when documenting old HTTP/2 server push configs. nomoduleOnly for legacy-script style cases. Mark as disabledKeeps it in the list but excludes it from generated output.

Current entries

Build multiple link relations, then export as a combined header or HTML block.

Generated output

Header values use comma-separated RFC 8288 style syntax. HTML output mirrors the same entries when that relation makes sense in markup.

Link header value

HTML <link> tags

Node / Express snippet

Nginx snippet

Implementation notes

Built for practical SEO, performance, and internationalization workflows. Single-file, client-side, and easy to deploy.