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Comprehension · readable-url

URL describes the content

Assistants show the URL next to the citation, and readable URLs get clicked more than opaque ids.

The full AX specification, all 70 checks

What it is worth

Check idreadable-url
PillarComprehension — Once fetched, can the agent work out what this page is and what it says?
Weight within the pillar3 points
Share of the overall scoreabout 0.7 of 100
Kind of changeEngineering — a code change and a deploy

Two numbers rather than one, because a check's weight is inside its pillar and the pillar is a share of the whole. The largest check in the smallest pillar moves your score less than a middling one in the largest, and knowing which you are looking at is the difference between fixing the right thing and fixing the loudest thing.

Why an agent cares

Assistants show the URL next to the citation, and readable URLs get clicked more than opaque ids.

Worth saying plainly: this is not a search-engine ranking factor and passing it will not move you up a results page. It measures something else — whether software with no browser, no JavaScript and a few hundred tokens of budget can tell what your page is and do something with it. Those are the conditions an AI assistant reads you under, and they are much harsher than a browser's.

How to satisfy it

This check does not carry a copy-pasteable snippet, and the reason is worth stating rather than papering over: what it measures is a property of your server or your whole document, not a tag that can be pasted into it. Assistants show the URL next to the citation, and readable URLs get clicked more than opaque ids.

Scan the page and the report will say what was actually observed — the header that was missing, the status that came back, the passage that could not stand alone — which is the part that tells you what to change. A generic snippet here would be a guess about a site nobody has looked at.

How often the web fails this

Measured on 2026-09-06 against AX specification v1.5.1, across a sample of 292 public websites.

ResultSitesShare of those assessed
Failed00%
Warned00%
Passed292100%
Did not apply0excluded from the shares

The last row is kept out of the percentages deliberately. A check that did not apply to 0 of 292 sites is not a check most of the web passes, and folding those in is the commonest way this sort of table is used to say something untrue.

At 0% this is something most sites already get right, which makes failing it more costly than the point value suggests — you are behind the field rather than level with it.

Testing it on your own site

npx axray-cli your-site.com

All 70 checks against one URL, this one among them, with what was found rather than only whether it passed. Add --min 70 in a pipeline and the command exits non-zero below that score, so a change that breaks what agents can read fails the build instead of shipping.

Questions about this check

What does the "URL describes the content" check mean?

Assistants show the URL next to the citation, and readable URLs get clicked more than opaque ids. It sits in the Comprehension pillar of the Agent Experience rubric and is worth 3 points within that pillar, which works out at about 0.7 points of the overall score out of 100.

Is it unusual to fail readable-url?

No. Of 292 public sites where this check applied, 0 failed it — 0%. The measurement was taken on 2026-09-06 against AX specification v1.5.1, and no site is named.

How do I test readable-url on my own site?

Run npx axray-cli your-site.com from a terminal. It runs all 70 checks against one URL and prints this one among them, with what it found rather than only whether it passed. It is free, needs no account and installs nothing.

The rest of the Comprehension pillar

Once fetched, can the agent work out what this page is and what it says?

See how your own page does on this check and the other 69, with the fixes ordered by how many points each one recovers. One scan, no account.