Websites Powered by Microsoft 365
3,076,429 websites tracked using Microsoft 365 (Webmail) · www.microsoft.com
Microsoft 365 is a webmail interface for reading email in a browser. Its official site is microsoft.com. PoweredBy tracks the websites that use Microsoft 365 across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the webmail ecosystem.
Usage trend
500K
1M
1.5M
2M
Aug 2022
Sep 2023
Sep 2024
Oct 2025
Oct 2026
Domains observed using Microsoft 365 in each month's HTTP Archive crawl,
Aug 2022 to Oct 2026 · peak 1,637,988 in Mar 2026. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.8 s
INP 75 ms
CLS 0
TTFB 800 ms
Median site among 1,417,795 Microsoft 365 sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
452,995
United Kingdom
171,261
Germany
135,089
Canada
108,446
India
100,575
Netherlands
100,183
France
93,767
Australia
91,309
Sites using Microsoft 365 by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Legal | 30.91% | 8,670 |
| Finance and insurance | 26.64% | 5,534 |
| Non-profit and religious | 23.25% | 2,410 |
| Home and construction | 20.14% | 12,233 |
| Industrial and manufacturing | 18.64% | 953 |
| Professional services | 18.50% | 10,073 |
| Travel and hospitality | 16.49% | 14,147 |
| Healthcare | 16.41% | 20,754 |
| Automotive | 16.25% | 13,642 |
| Arts and entertainment | 15.72% | 8,128 |
| Government | 14.50% | 1,361 |
| Real estate | 12.92% | 10,488 |
Share of each industry's websites with a detected stack that use Microsoft 365; industries come from what sites declare in their own structured data.
Top sites by authority
9+
17% · 65 of 372 sites
8+
24% · 1,824 of 7,677 sites
7+
23% · 10,541 of 45,712 sites
6+
22% · 24,582 of 110,136 sites
5+
20% · 49,583 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Microsoft 365 in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Microsoft 365
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 3101 | thearc.org | 7.70/10 | 47,800 | 11,851 | Aug 2022 |
| 3102 | prsa.org | 7.70/10 | 70,300 | 5,333 | Aug 2022 |
| 3103 | ruralhealthinfo.org | 7.70/10 | 60,200 | 14,065 | Aug 2022 |
| 3104 | mercycorps.org | 7.70/10 | 10,400 | 6,286 | Aug 2022 |
| 3105 | elite.se | 7.70/10 | 1,300 | 692 | Aug 2022 |
| 3106 | nserc-crsng.gc.ca | 7.70/10 | 4,500 | 4,731 | Aug 2022 |
| 3107 | ssrc.org | 7.70/10 | 4,000 | 961 | Aug 2022 |
| 3108 | israelhayom.co.il | 7.70/10 | 660 | 1,134 | Aug 2022 |
| 3109 | fit.edu | 7.70/10 | 101,000 | 32,811 | Oct 2022 |
| 3110 | economia.gov.br | 7.70/10 | - | - | Aug 2022 |
| 3111 | ladn.eu | 7.70/10 | 76 | 420 | Aug 2022 |
| 3112 | designspiration.com | 7.70/10 | 6,700 | 3,813 | Dec 2022 |
| 3113 | haw-hamburg.de | 7.70/10 | 810 | 502 | Mar 2023 |
| 3114 | nctm.org | 7.70/10 | 40,500 | 10,384 | Aug 2022 |
| 3115 | al.sp.gov.br | 7.70/10 | 830 | 1,832 | Mar 2023 |
| 3116 | houstonmethodist.org | 7.70/10 | 505,400 | 156,561 | Feb 2026 |
| 3117 | hvg.hu | 7.70/10 | 5,000 | 2,782 | Aug 2022 |
| 3118 | assnat.qc.ca | 7.70/10 | 1,700 | 1,647 | Aug 2022 |
| 3119 | vera.org | 7.70/10 | 62,900 | 14,731 | Aug 2022 |
| 3120 | lu.lv | 7.70/10 | 870 | 432 | Aug 2022 |
| 3121 | rtl.lu | 7.70/10 | 5,800 | 1,270 | Aug 2022 |
| 3122 | religionnews.com | 7.70/10 | 34,300 | 29,786 | Aug 2022 |
| 3123 | lecho.be | 7.70/10 | 1,400 | 3,152 | Aug 2022 |
| 3124 | elon.edu | 7.70/10 | 324,900 | 45,884 | Aug 2022 |
| 3125 | expresso.pt | 7.70/10 | 4,200 | 8,081 | Aug 2022 |
| 3126 | bcn.cat | 7.70/10 | 15 | 83 | May 2026 |
| 3127 | minambiente.it | 7.70/10 | - | - | Apr 2024 |
| 3128 | wamu.org | 7.70/10 | 64,700 | 32,874 | Apr 2026 |
| 3129 | scj.go.jp | 7.70/10 | 36 | 72 | Jun 2026 |
| 3130 | iodata.jp | 7.70/10 | 230 | 497 | Aug 2022 |
| 3131 | caisse-epargne.fr | 7.70/10 | 3,000 | 1,226 | Feb 2024 |
| 3132 | farmers.gov | 7.70/10 | 146,000 | 35,047 | Nov 2022 |
| 3133 | convention.co.jp | 7.70/10 | - | 13 | Aug 2022 |
| 3134 | jeed.go.jp | 7.70/10 | 2 | 18 | Apr 2026 |
| 3135 | kunaicho.go.jp | 7.70/10 | 12,500 | 1,347 | Oct 2023 |
| 3136 | waseda.ac.jp | 7.70/10 | - | - | Aug 2022 |
| 3137 | prosenectute.ch | 7.70/10 | 55 | 21 | Aug 2022 |
| 3138 | audiense.com | 7.69/10 | 480 | 63 | Jun 2025 |
| 3139 | dyn.com | 7.69/10 | - | - | Aug 2022 |
| 3140 | cep.org | 7.69/10 | 5,100 | 503 | Aug 2022 |
| 3141 | advancingjustice-aajc.org | 7.69/10 | 3,600 | 962 | Aug 2022 |
| 3142 | dentsudigital.co.jp | 7.69/10 | 66 | 25 | May 2026 |
| 3143 | dft.gov.uk | 7.69/10 | 2 | 4 | Dec 2022 |
| 3144 | sessionize.com | 7.69/10 | 1,900 | 1,698 | Aug 2022 |
| 3145 | peru21.pe | 7.69/10 | 3,900 | 14,127 | Jun 2023 |
| 3146 | bsa.org | 7.69/10 | 10,700 | 974 | Aug 2022 |
| 3147 | spreadshirt.com | 7.69/10 | 32,800 | 64,565 | May 2025 |
| 3148 | generalmills.com | 7.69/10 | 131,300 | 28,068 | Aug 2022 |
| 3149 | christianbook.com | 7.69/10 | 188,000 | 105,933 | May 2026 |
| 3150 | thebookseller.com | 7.69/10 | 10,000 | 15,049 | Aug 2022 |
| 3151 | thenorthface.com | 7.69/10 | 668,800 | 183,713 | Aug 2022 |
| 3152 | wsp.com | 7.69/10 | 82,900 | 23,485 | Apr 2023 |
| 3153 | bestlawyers.com | 7.69/10 | 98,200 | 44,796 | Aug 2022 |
| 3154 | enterprise.com | 7.69/10 | 2,842,900 | 200,593 | Feb 2025 |
| 3155 | ibc.org | 7.69/10 | 500 | 629 | Aug 2022 |
| 3156 | tribecafilm.com | 7.69/10 | 68,500 | 9,891 | Aug 2022 |
| 3157 | visitsealife.com | 7.69/10 | 180,600 | 42,641 | Aug 2022 |
| 3158 | red.gob.es | 7.69/10 | - | - | Aug 2022 |
| 3159 | isa.org | 7.69/10 | 27,900 | 5,513 | Aug 2022 |
| 3160 | mentalhealthcommission.ca | 7.69/10 | 4,100 | 2,191 | Aug 2022 |
| 3161 | lesinrocks.com | 7.69/10 | 1,100 | 2,985 | Aug 2022 |
| 3162 | zasilkovna.cz | 7.69/10 | 210 | 294 | Nov 2023 |
| 3163 | gov.nu.ca | 7.69/10 | 7,000 | 2,333 | Aug 2022 |
| 3164 | theworlds50best.com | 7.69/10 | 252,500 | 43,080 | Aug 2022 |
| 3165 | table.media | 7.69/10 | 3,300 | 5,200 | Aug 2022 |
| 3166 | uneca.org | 7.69/10 | 12,900 | 2,780 | Dec 2022 |
| 3167 | vub.be | 7.69/10 | 1,100 | 1,369 | Aug 2022 |
| 3168 | dav.org | 7.69/10 | 159,000 | 85,494 | Jul 2026 |
| 3169 | gazette.com | 7.69/10 | 58,700 | 35,420 | Aug 2022 |
| 3170 | aston.ac.uk | 7.69/10 | 38,600 | 15,959 | Aug 2022 |
| 3171 | electronica.art | 7.69/10 | - | - | Aug 2022 |
| 3172 | knoxnews.com | 7.69/10 | 258,300 | 115,367 | Apr 2025 |
| 3173 | madd.org | 7.69/10 | 35,000 | 10,148 | Oct 2025 |
| 3174 | tpl.org | 7.69/10 | 35,600 | 10,584 | Aug 2022 |
| 3175 | nafsa.org | 7.69/10 | 28,900 | 9,676 | Aug 2022 |
| 3176 | timesofmalta.com | 7.69/10 | 7,000 | 13,479 | Aug 2022 |
| 3177 | esmo.org | 7.69/10 | 13,500 | 8,593 | Aug 2022 |
| 3178 | legislation.qld.gov.au | 7.69/10 | 3,000 | 3,467 | Aug 2022 |
| 3179 | njcourts.gov | 7.69/10 | 331,500 | 118,880 | Aug 2022 |
| 3180 | americanscientist.org | 7.69/10 | 139,500 | 26,976 | Aug 2022 |
| 3181 | levif.be | 7.69/10 | 140 | 528 | Mar 2023 |
| 3182 | mst.edu | 7.69/10 | 39,800 | 5,657 | Aug 2022 |
| 3183 | tcu.gov.br | 7.69/10 | 11 | 10 | Jun 2023 |
| 3184 | alzheimer.ca | 7.69/10 | 14,200 | 4,527 | Aug 2022 |
| 3185 | montreal.ca | 7.69/10 | 31,500 | 8,760 | Dec 2023 |
| 3186 | 113.nl | 7.69/10 | 10 | 80 | Aug 2022 |
| 3187 | designmuseum.org | 7.69/10 | 50,000 | 10,113 | Aug 2022 |
| 3188 | lbc.co.uk | 7.69/10 | 19,500 | 22,981 | Jan 2024 |
| 3189 | netdoktor.de | 7.69/10 | 2,900 | 1,805 | Dec 2024 |
| 3190 | itamaraty.gov.br | 7.69/10 | 10 | 50 | Dec 2022 |
| 3191 | unipr.it | 7.69/10 | 870 | 954 | Aug 2022 |
| 3192 | brisbane.qld.gov.au | 7.69/10 | 12,600 | 12,731 | Aug 2022 |
| 3193 | domusweb.it | 7.69/10 | 12,000 | 10,112 | Aug 2022 |
| 3194 | washingtoninstitute.org | 7.69/10 | 53,000 | 18,291 | Aug 2025 |
| 3195 | tus.ac.jp | 7.69/10 | 2,200 | 328 | Aug 2022 |
| 3196 | asahi-kasei.co.jp | 7.69/10 | 370 | 395 | Dec 2022 |
| 3197 | pucsp.br | 7.69/10 | 130 | 386 | Aug 2022 |
| 3198 | topcoder.com | 7.68/10 | 3,100 | 3,408 | Mar 2023 |
| 3199 | neura.edu.au | 7.68/10 | 670 | 433 | Dec 2025 |
| 3200 | dns.pl | 7.68/10 | 170 | 86 | Jul 2026 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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