ClearUtils

SEO Tools

Preload Link Checker

Check pasted rel=preload link tags locally before performance QA, template review, or launch handoff.

Pasted HTML stays in your browser. No asset fetching, crawling, rendering, or storage.
Preload links
2
Resource types
2
  1. font /fonts/inter.woff2 font/woff2
  2. image /hero.webp
Font preloads usually need a crossorigin attribute.

Use this pasted-input SEO QA tool when reviewing performance-related head markup from templates or build output. Confirm each preload has an href and as type, then check viewport, favicon, canonical, and robots signals. This tool does not download assets or measure real page performance.

What this tool does

Preload Link Checker inventories preload hrefs, as types, file types, crossorigin attributes, missing href values, missing as attributes, and font preload crossorigin reminders from pasted HTML.

Common use cases

Check pasted HTML head snippets for rel=preload resource hints before performance QA, template review, or launch handoff.

Use Preload Link Checker during a pasted-input SEO QA pass before publishing or handing off a page. It helps review copied metadata, snippets, headings, social tags, or canonical signals without crawling a live URL.

How to use it

  1. Paste preload link tags, an HTML head snippet, or copied build output.
  2. Review the preload count, resource types, href values, file types, and warnings.
  3. Pair the result with stylesheet, script, favicon, and canonical checks before publishing.

Example workflow

Paste the relevant title, description, tag block, heading outline, or canonical markup from your draft page. Review the warnings and preview output, make edits in your CMS or document, then recheck the same pasted input before publishing.

Privacy note

Client-side only: this pasted-input SEO QA tool runs in your browser and does not fetch assets, crawl live URLs, render pages, upload HTML, or store input.

FAQ

Does this preload checker download assets?

No. It only reads pasted link tags in your browser and does not fetch assets, crawl pages, render HTML, upload snippets, or store input.

What preload issues can it flag?

It flags missing href values, missing as attributes, unusual relative paths, and font preloads that do not declare crossorigin.

Is this a page speed test?

No. It is a pasted-markup QA helper. Use performance tooling after publishing to measure whether each preload helps or hurts real page loading.

Explore more tools

Browse the SEO Tools hub or continue with the SEO QA Toolkit when this task is part of a larger workflow.