Skip to content

Your site vs. IIS average

Your site
74
IIS average
71
CategoryYour scorePeer avgDelta
Performance9276+16
Security6664+2
Accessibility5157-6
SEO7483-9
Infrastructure8782+5
Compliance6775-8
Content6873-5
Sustainability8269+13

Better than 71% of IIS sites

Run another audit to improve your score →

IIS

Based on 21 real audits

44
Avg. Performance
88
Avg. Accessibility
79
Avg. Best Practices
89
Avg. SEO
64
Avg. Security
71
Avg. Composite
44 /100
Avg. Performance
461 ms
Avg. TTFB
71 /100
Avg. Composite
21
Sites Audited

How IIS sites compare

IIS sites perform near the global average with a mean Lighthouse performance score of 44/100 (global average: 45/100).

Recent Audits

SitePerformanceGradeAudited
parliament.uk12D2026-04-22
newsmax.com11D2026-04-22
joins.com98C2026-04-21
guidestar.org54C2026-04-21
honda.com64D2026-04-21
bankofengland.co.uk84C2026-04-21
aappublications.org36C2026-04-21
aruba.it56C2026-04-21
ada.org28C2026-04-21
hse.gov.uk37C2026-04-21

Commonly Used With

Sites that use IIS also commonly use:

Microsoft IIS Server 21Windows Server Operating systems 19Microsoft 365 Email 13ASP.NET Runtime 13Google Search Console Analytics 12Microsoft ASP.NET Web frameworks 11Google Tag Manager Tag managers 10Google Analytics Analytics 10Cloudflare CDN 10jQuery JavaScript libraries 8

Compare with...

IIS vs Microsoft IISIIS vs Windows ServerIIS vs Microsoft 365IIS vs ASP.NETIIS vs Google Search ConsoleIIS vs Microsoft ASP.NETIIS vs Google Tag ManagerIIS vs Google AnalyticsIIS vs CloudflareIIS vs jQuery

FAQ

What is the average Lighthouse performance score for IIS sites?
Based on 21 real audits, IIS sites score an average of 44/100 on Lighthouse performance.
How does IIS compare on web security?
IIS sites score an average security grade of 64/100 in BeaverCheck audits.
What is the average page load time for IIS websites?
The average Time to First Byte (TTFB) for IIS sites is 461ms based on 21 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.

Audit your IIS site now

Run Audit

Send Feedback