Security Report Summary
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Site: https://prtimes.jp/main/html/rd/p/000000309.000058165.html
IP Address: 151.101.193.55
Report Time: 23 Oct 2026 21:08:32 UTC
Headers:
  • Strict-Transport-Security
  • X-Frame-Options
  • Content-Security-Policy
  • X-Content-Type-Options
  • Referrer-Policy
  • Permissions-Policy
Advanced:
Your site could be at risk, let’s perform a deeper security analysis of your site and APIs:
Missing Headers
Content-Security-PolicyContent Security Policy is an effective measure to protect your site from XSS attacks. By whitelisting sources of approved content, you can prevent the browser from loading malicious assets.
X-Content-Type-OptionsX-Content-Type-Options stops a browser from trying to MIME-sniff the content type and forces it to stick with the declared content-type. The only valid value for this header is "X-Content-Type-Options: nosniff".
Referrer-PolicyReferrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites.
Permissions-PolicyPermissions Policy is a new header that allows a site to control which features and APIs can be used in the browser.
Raw Headers
HTTP/2200
cache-controlno-cache, no-store, max-age=0, must-revalidate
x-powered-byExpress
content-encodinggzip
content-typetext/html; charset=utf-8
via1.1 varnish, 1.1 varnish
accept-rangesbytes
age0
dateFri, 23 Oct 2026 21:08:32 GMT
x-served-bycache-nrt-rjaa8190033-NRT, cache-nrt-rjaa8190063-NRT, cache-dub4357-DUB
x-cacheMISS, MISS, MISS
x-cache-hits0, 0, 0
x-timerS1792789712.910658,VS0,VE301
varyAccept-Encoding
strict-transport-securitymax-age=31557600
x-frame-optionsSAMEORIGIN
alt-svch3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length83803
Upcoming Headers
Cross-Origin-Embedder-PolicyCross-Origin Embedder Policy allows a site to prevent assets being loaded that do not grant permission to load them via CORS or CORP.
Cross-Origin-Opener-PolicyCross-Origin Opener Policy allows a site to opt-in to Cross-Origin Isolation in the browser.
Cross-Origin-Resource-PolicyCross-Origin Resource Policy allows a resource owner to specify who can load the resource.
Additional Information
x-powered-byX-Powered-By can usually be seen with values like "PHP/5.5.9-1ubuntu4.5" or "ASP.NET". Trying to minimise the amount of information you give out about your server is a good idea. This header should be removed or the value changed.
strict-transport-securityHTTP Strict Transport Security is an excellent feature to support on your site and strengthens your implementation of TLS by getting the User Agent to enforce the use of HTTPS.
x-frame-optionsX-Frame-Options tells the browser whether you want to allow your site to be framed or not. By preventing a browser from framing your site you can defend against attacks like clickjacking.