Response and network capabilities

Content Security Policy present

Websites with saved Content Security Policy present evidence.

975Websites

21.9%Assessed sample

Oct 25, 2026Last observed

Content Security Policy present in this sample

21.9%975 of 4,456 fully assessed observations

3,481 fully assessed observations without this saved clue. 0 truncated and 27,480 unrecorded observations are excluded. This is a share of this assessed sample, not global market share.

Evidence & coverage

This evidence family has 4,456 fully measured and 0 truncated captures. Coverage is unrecorded for 27,480 of 31,936 currently eligible research observations; those cases are unknown.

A missing clue does not mean the technology is absent, and saved software clues do not identify the website’s host.

PUBLIC SAVED SAMPLE

Content Security Policy present observations

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A positive reference is evidence from a saved page response. It does not prove the software is installed, active, or used by every page.

975Eligible sites with evidence

4,456Fully measured denominator

21.9%Share of measured family

25 Oct 2026Latest saved observation

Comparable date trend

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Technology mix by source

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Also observed alongside Content Security Policy present

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Eligible sites with saved evidence

modo25.comObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.leg-thueringen.deObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.birdie.careObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.ajmadison.comObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.metroman.huObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
cheneetoday.comObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
napavalleyregister.comObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.collegechoice.netObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.dundalkdemocrat.ieObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.
www.aranzadilaley.esObserved 25 Oct 2026
Evidence
http-csp-header · header-present · high confidence
Coverage for this capture: not-recorded. A missing reference is unknown unless its evidence family was complete.