IIS Performance Audit — BeaverCheck

45 /100

Avg. Performance

527 ms

Avg. TTFB

72 /100

Avg. Composite

Sites Audited

How IIS sites compare

IIS sites tend to score below average on performance (45/100), compared to the global average of 69/100.

Recent Audits

View adoption trends → See all 69 websites using IIS →

Site	Performance	Grade	Audited
www.smy3engg.com	78	C	2026-09-01
www.sazimebudoucnost.cz	56	B	2026-08-28
portal.kumorai.io	33	C	2026-08-25
provincialatina.com	53	C	2026-08-06
tobaccoseed.co.uk	69	B	2026-07-20
www.eurovoyages.net	56	B	2026-07-20
coobiz.it	22	C	2026-07-12
finecobank.com	27	C	2026-07-10
www.ikv.org.tr	52	C	2026-05-10
www.compliancewire.com	83	C	2026-05-10

Commonly Used With

Sites that use IIS also commonly use:

Microsoft IIS Server 69 Windows Server Operating systems 67 Microsoft ASP.NET Web frameworks 49 ASP.NET Runtime 47 Google Search Console Analytics 45 Microsoft 365 Email 40 Google Tag Manager Tag managers 39 jQuery JavaScript libraries 37 Google Analytics Analytics 34 Open Graph Miscellaneous 32

Compare with...

IIS vs Microsoft IIS IIS vs Windows Server IIS vs Microsoft ASP.NET IIS vs ASP.NET IIS vs Google Search Console IIS vs Microsoft 365 IIS vs Google Tag Manager IIS vs jQuery IIS vs Google Analytics IIS vs Open Graph

FAQ

What is the average Lighthouse performance score for IIS sites?

Based on 69 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 527ms based on 69 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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