DNS Gurus
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25 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Connection
Performance
keep-alive
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

3 headers
Age
Caching
1100
Cache-Control
Caching
public, max-age=0, s-maxage=3600
Last-Modified
Caching
Wed, 12 Nov 2025 05:21:39 GMT

Content Headers

1 headers
Content-Type
Content
text/html; charset=UTF-8

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

1 headers
Set-Cookie
Cookies
__cf_bm=ozZF2rAau4d9Bdxvh.d6RcwjmhiGri8z9f0datlWHMU-1762925999-1.0.1.1-jiaIVpvNmBaLGxkcyo6QeD0_bMyUOHlckG3eCfEMwmS0EzDntm5317O0X3GhrFcxPJmYX2a9wG.P4hf.YRzWNNu1JPdnHhFPxy6rn5iS.I8; path=/; expires=Wed, 12-Nov-25 06:09:59 GMT; domain=.plos.org; HttpOnly; Secure; SameSite=None

Other Headers

14 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
99d3b12a0d6b3450-IAD
Date
Other
Wed, 12 Nov 2025 05:39:59 GMT
Ki-Cache-Tag
Other
4a23e41a-8890-4216-808b-57e0278bb098,99039c56822bdf8304bc31cd22c0635e5dc220009453511a799228292d02c698
Ki-Cache-Type
Other
Edge
Ki-Cf-Cache-Status
Other
HIT
Ki-Edge
Other
v=23.0.1;mv=5.0.17
Ki-Origin
Other
g1p
Link
Other
<https://plos.org/wp-json/>; rel="https://api.w.org/", <https://plos.org/wp-json/wp/v2/pages/51>; rel="alternate"; title="JSON"; type="application/json", <https://plos.org/>; rel=shortlink
Nel
Other
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
Report-To
Other
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=KqKeDfB6gGpl8wEtpGirso3qNoolRfk698U2trHUkxwxVIefIptdDHXyTviBDGqC3r3BTQQwOgzdD9wvzAY7imZpvIZkZvq7K6TMebWqGDa%2FRlvqHXfxUi7j"}],"group":"cf-nel","max_age":604800}
X-Edge-Location-Klb
Other
1
X-Kinsta-Cache
Other
HIT

Recommendations

Enable compression (gzip/brotli) to improve performance

Analysis completed in 148ms