Head to head

semver.org vs fpdf.org

semver.org is more readable to AI, 86 against 54 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.

semver.org 86/10086semver.org

Scanned 1 day ago · full report

fpdf.org 54/10054fpdf.org

Scanned 1 day ago · full report

Where the difference is by dimension

Dimensionsemver.orgfpdf.org
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…
21 / 257 / 25
Structure
Machine-readable markup that states the page's type, entities, canonical URL, and discrete fact…
18 / 203 / 20
Attribution
Signals that let an answer engine name the author, date the content, resolve the publisher, and…
4 / 151 / 15

The measurements side by side

Measurementsemver.orgfpdf.org
Answer engines blocked00
Training crawlers blocked00
Refuses AI agents at the edgenono
Words of text without JavaScript2,62310
Structured datayesno
Sitemapyesno
llms.txtnono

semver.org blocks no tracked AI crawler in robots.txt.

fpdf.org blocks no tracked AI crawler in robots.txt.

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