Head to head

simplywall.st vs pca.st

simplywall.st is more readable to AI, 69 against 65 out of 100. Both were measured with the same audit: robots.txt policy for 48 AI agents, live requests under four crawler user agents, and a JavaScript-free read of the homepage.

simplywall.st 69/10069simplywall.st

Scanned 15 hours ago · full report

pca.st 65/10065pca.st

Scanned 10 hours ago · full report

Where the difference is by dimension

Dimensionsimplywall.stpca.st
Reach
Whether AI crawlers and answer-engine fetchers are permitted to request the page at all. What h…
40 / 4040 / 40
Readability
Whether a fetcher that does not execute JavaScript receives the actual content, in markup an ex…
19 / 2517 / 25
Structure
Machine-readable markup that states the page's type, entities, canonical URL, and discrete fact…
9 / 204 / 20
Attribution
Signals that let an answer engine name the author, date the content, resolve the publisher, and…
1 / 151 / 15

The measurements side by side

Measurementsimplywall.stpca.st
Answer engines blocked10
Training crawlers blocked00
Refuses AI agents at the edgenono
Words of text without JavaScript1,660324
Structured datanono
Sitemapyesno
llms.txtnono

simplywall.st blocks Googlebot-News.

pca.st blocks no tracked AI crawler in robots.txt.

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