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X-Clacks-Overhead

Based on 2 real audits

41
Avg. Performance
93
Avg. Accessibility
84
Avg. Best Practices
91
Avg. SEO
73
Avg. Security
76
Avg. Composite
41 /100
Avg. Performance
345 ms
Avg. TTFB
76 /100
Avg. Composite
2
Sites Audited

How X-Clacks-Overhead sites compare

X-Clacks-Overhead sites tend to score below average on performance (41/100), compared to the global average of 49/100.

Recent Audits

SitePerformanceGradeAudited
www.mozilla.org51C2026-04-04
stackoverflow.com31C2026-04-04

Commonly Used With

Sites that use X-Clacks-Overhead also commonly use:

HSTS Security 2Varnish Caching 1Transcend Cookie compliance 1Sentry Issue trackers 1Open Graph Miscellaneous 1Microsoft Analytics 1Google Workspace Email 1Google Tag Manager Tag managers 1Google Search Console Analytics 1Google Cloud Hosting 1

Compare with...

X-Clacks-Overhead vs HSTSX-Clacks-Overhead vs VarnishX-Clacks-Overhead vs TranscendX-Clacks-Overhead vs SentryX-Clacks-Overhead vs Open GraphX-Clacks-Overhead vs MicrosoftX-Clacks-Overhead vs Google WorkspaceX-Clacks-Overhead vs Google Tag ManagerX-Clacks-Overhead vs Google Search ConsoleX-Clacks-Overhead vs Google Cloud

FAQ

What is the average Lighthouse performance score for X-Clacks-Overhead sites?
Based on 2 real audits, X-Clacks-Overhead sites score an average of 41/100 on Lighthouse performance.
How does X-Clacks-Overhead compare on web security?
X-Clacks-Overhead sites score an average security grade of 73/100 in BeaverCheck audits.
What is the average page load time for X-Clacks-Overhead websites?
The average Time to First Byte (TTFB) for X-Clacks-Overhead sites is 345ms based on 2 audits.
How can I improve my X-Clacks-Overhead site's performance?
Run a free audit on BeaverCheck to get specific recommendations for your X-Clacks-Overhead site. Common issues include render-blocking resources, unoptimized images, and missing caching headers.

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