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Category: Web servers

IIS

Based on 66 real audits

45
Avg. Performance
87
Avg. Accessibility
84
Avg. Best Practices
90
Avg. SEO
66
Avg. Security
72
Avg. Composite
45 /100
Avg. Performance
513 ms
Avg. TTFB
72 /100
Avg. Composite
66
Sites Audited

How IIS sites compare

IIS sites tend to score below average on performance (45/100), compared to the global average of 59/100.

Recent Audits

View adoption trends → See all 66 websites using IIS →
SitePerformanceGradeAudited
provincialatina.com53C2026-08-06
tobaccoseed.co.uk69B2026-07-20
www.eurovoyages.net56B2026-07-20
coobiz.it22C2026-07-12
finecobank.com27C2026-07-10
www.ikv.org.tr52C2026-05-10
www.compliancewire.com83C2026-05-10
online.secure-logistics.nl54C2026-05-10
paylocity.com31C2026-04-23
hktdc.com12D2026-04-23

Commonly Used With

Sites that use IIS also commonly use:

Microsoft IIS Server 66Windows Server Operating systems 64Microsoft ASP.NET Web frameworks 46Google Search Console Analytics 44ASP.NET Runtime 44Microsoft 365 Email 39Google Tag Manager Tag managers 38jQuery JavaScript libraries 35Google Analytics Analytics 33Open Graph Miscellaneous 31

Compare with...

IIS vs Microsoft IISIIS vs Windows ServerIIS vs Microsoft ASP.NETIIS vs Google Search ConsoleIIS vs ASP.NETIIS vs Microsoft 365IIS vs Google Tag ManagerIIS vs jQueryIIS vs Google AnalyticsIIS vs Open Graph

FAQ

What is the average Lighthouse performance score for IIS sites?
Based on 66 real audits, IIS sites score an average of 45/100 on Lighthouse performance.
How does IIS compare on web security?
IIS sites score an average security grade of 66/100 in BeaverCheck audits.
What is the average page load time for IIS websites?
The average Time to First Byte (TTFB) for IIS sites is 513ms based on 66 audits.
How can I improve my IIS site's performance?
Run a free audit on BeaverCheck to get specific recommendations for your IIS site. Common issues include render-blocking resources, unoptimized images, and missing caching headers.

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