Is Apache or IIS more popular?

Apache is used by more websites in our catalog: 91,556 use Apache and 14,679 use IIS.

Does Apache or IIS have higher-authority sites?

IIS sites have the higher median Ahrefs Domain Rating (Apache: 26, IIS: 35).

Is Apache or IIS growing faster?

Between 2026-06 and 2026-07, Apache went from 11% to 10% of all tracked sites, while IIS went from 1.8% to 1.7%. IIS is gaining ground faster in our index.

How many sites use both Apache and IIS?

0 websites in our catalog use both Apache and IIS.

Where does this Apache vs IIS data come from?

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.

Apache vs IIS — Site Stats Database

Apache vs IIS

A side-by-side comparison of two web servers, based on the 291,153 Web Server sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Apache	IIS
Websites	91,556	14,679
Market share	31%	5.0%
Share of top 10K sites	5.4%	1.4%
Share of top 100K sites

Rank	#2	#4

Median DR	26	35

Average DR	29	36

Median keywords	755	940

Median referring domains	352	444

Median domain age	16 yrs	21 yrs

Average domain age	16 yrs	20 yrs

Average monthly traffic	57,831	66,914

Combined monthly traffic	5,294,784,320	982,237,478

weather.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,098,961
Referring Domains132,221
Domain Age27 yrs
Traffic (Jun 2026)221,232,646
Traffic Trend
TechnologyApache
unitconverters.net
LanguageEnglish
DR (Ahrefs)74
Total Keywords462,113
Referring Domains5,885
Domain Age18 yrs
Traffic (Jun 2026)216,506,436
Traffic Trend
Technology
nps.gov
LanguageEnglish
DR (Ahrefs)92
Total Keywords1,563,784
Referring Domains315,622
Domain Age28 yrs
Traffic (Jun 2026)121,452,048
Traffic Trend
TechnologyApache
wordhippo.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords2,155,207
Referring Domains12,827
Domain Age17 yrs
Traffic (Jun 2026)114,941,629
Traffic Trend
Technology
calculator.net
LanguageEnglish
DR (Ahrefs)84
Total Keywords640,891
Referring Domains24,315
Domain Age28 yrs
Traffic (Jun 2026)101,280,794
Traffic Trend
Technology
walgreens.com
LanguageEnglish
DR (Ahrefs)85
Total Keywords1,738,607
Referring Domains67,299
Domain Age31 yrs
Traffic (Jun 2026)76,821,712
Traffic Trend
Technology
study.com
LanguageEnglish
DR (Ahrefs)85
Total Keywords4,953,237
Referring Domains123,063
Domain Age30 yrs
Traffic (Jun 2026)74,304,102
Traffic Trend
TechnologyApache
byjus.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords1,666,559
Referring Domains55,721
Domain Age13 yrs
Traffic (Jun 2026)65,601,851
Traffic Trend
TechnologyApache
calculatorsoup.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords556,680
Referring Domains12,566
Domain Age16 yrs
Traffic (Jun 2026)55,361,012
Traffic Trend
Technology
enterprise.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords266,286
Referring Domains31,802
Domain Age28 yrs
Traffic (Jun 2026)46,150,043
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
weather.gov	English	91	1,098,961	132,221	27 yrs	221,232,646		Apache

ciclt.net
LanguageHindi
DR (Ahrefs)54
Total Keywords226,435
Referring Domains1,657
Domain Age20 yrs
Traffic (Jun 2026)25,664,829
Traffic Trend
TechnologyIIS
gotquestions.org
LanguageEnglish
DR (Ahrefs)83
Total Keywords894,812
Referring Domains37,978
Domain Age24 yrs
Traffic (Jun 2026)21,600,171
Traffic Trend
Technology
uhaul.com
LanguageEnglish
DR (Ahrefs)82
Total Keywords286,557
Referring Domains21,818
Domain Age31 yrs
Traffic (Jun 2026)20,054,396
Traffic Trend
TechnologyIIS
tjx.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords196,583
Referring Domains13,711
Domain Age29 yrs
Traffic (Jun 2026)12,790,591
Traffic Trend
TechnologyIIS
aapc.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords282,781
Referring Domains11,910
Domain Age29 yrs
Traffic (Jun 2026)11,747,563
Traffic Trend
TechnologyIIS
oregon.gov
LanguageEnglish
DR (Ahrefs)90
Total Keywords572,609
Referring Domains80,421
Domain Age24 yrs
Traffic (Jun 2026)10,432,431
Traffic Trend
TechnologyIIS
subway.com
LanguageEnglish
DR (Ahrefs)82
Total Keywords117,638
Referring Domains34,087
Domain Age30 yrs
Traffic (Jun 2026)9,959,880
Traffic Trend
TechnologyIIS
nm.org
LanguageEnglish
DR (Ahrefs)80
Total Keywords464,755
Referring Domains21,588
Domain Age37 yrs
Traffic (Jun 2026)9,563,438
Traffic Trend
TechnologyIIS
nclottery.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords50,112
Referring Domains6,680
Domain Age27 yrs
Traffic (Jun 2026)9,175,424
Traffic Trend
Technology
eia.gov
LanguageEnglish
DR (Ahrefs)90
Total Keywords176,365
Referring Domains90,162
Domain Age16 yrs
Traffic (Jun 2026)9,082,709
Traffic Trend
TechnologyIIS