Websites Powered by Outlook Web App
6,623 websites tracked using Outlook Web App (Webmail) · help.outlook.com
Outlook Web App is a webmail interface for reading email in a browser. Its official site is help.outlook.com. PoweredBy tracks the websites that use Outlook Web App 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
1K
2K
3K
4K
Apr 2018
May 2020
Jul 2022
Aug 2024
Sep 2026
Domains observed using Outlook Web App in each month's HTTP Archive crawl,
Apr 2018 to Sep 2026 · peak 3,504 in Jan 2019. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.7 s
INP 75 ms
CLS 0
TTFB 700 ms
Median site among 5,265 Outlook Web App sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
2,737
India
1,532
United Kingdom
1,378
Germany
1,246
Canada
1,160
France
1,097
Spain
998
Netherlands
953
Sites using Outlook Web App by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Government | 0.02% | 2 |
| Arts and entertainment | <0.01% | 2 |
| Education | <0.01% | 2 |
| Professional services | <0.01% | 1 |
| News and media | <0.01% | 1 |
| Healthcare | <0.01% | 2 |
| Retail | <0.01% | 1 |
Share of each industry's websites with a detected stack that use Outlook Web App; industries come from what sites declare in their own structured data.
Top sites by authority
9+
0% · 0 of 372 sites
8+
<1% · 14 of 7,677 sites
7+
<1% · 34 of 45,712 sites
6+
<1% · 50 of 110,136 sites
5+
<1% · 69 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Outlook Web App in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Outlook Web App
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | mpg.de | 8.81/10 | 59,700 | 20,903 | Jan 2019 |
| 2 | rbc.ru | 8.63/10 | 890 | 1,002 | Aug 2026 |
| 3 | rwth-aachen.de | 8.55/10 | 640 | 1,476 | Aug 2018 |
| 4 | uni-koeln.de | 8.49/10 | 1,200 | 427 | Aug 2022 |
| 5 | inserm.fr | 8.40/10 | 3,100 | 2,265 | May 2023 |
| 6 | education.fr | 8.39/10 | - | - | Mar 2026 |
| 7 | uni-hannover.de | 8.35/10 | 1,300 | 518 | Jul 2026 |
| 8 | ruhr-uni-bochum.de | 8.34/10 | 5,500 | 3,577 | Aug 2022 |
| 9 | cas.cz | 8.33/10 | - | - | Jan 2019 |
| 10 | ionos.es | 8.32/10 | 320 | 1,054 | Jan 2026 |
| 11 | df.eu | 8.22/10 | 71 | 129 | Feb 2020 |
| 12 | government.bg | 8.15/10 | - | 3 | Sep 2026 |
| 13 | giustizia.it | 8.06/10 | 660 | 1,096 | Jun 2024 |
| 14 | uni-giessen.de | 8.06/10 | 1,600 | 1,978 | Aug 2018 |
| 15 | maharashtra.gov.in | 7.92/10 | 15 | 54 | Aug 2018 |
| 16 | gwdg.de | 7.90/10 | 6 | 20 | Aug 2022 |
| 17 | hautsdefrance.fr | 7.83/10 | 190 | 368 | Aug 2022 |
| 18 | roteskreuz.at | 7.67/10 | 73 | 264 | Feb 2020 |
| 19 | finam.ru | 7.56/10 | 430 | 569 | Jan 2019 |
| 20 | gba.gob.ar | 7.45/10 | 2,800 | 6,640 | Aug 2024 |
| 21 | heraldcorp.com | 7.38/10 | - | - | Apr 2026 |
| 22 | newvision.co.ug | 7.34/10 | 4,400 | 3,527 | Jul 2026 |
| 23 | tjsp.jus.br | 7.32/10 | 4,200 | 4,020 | Aug 2018 |
| 24 | goias.gov.br | 7.28/10 | 1,800 | 3,571 | Aug 2022 |
| 25 | stellarinfo.com | 7.27/10 | 36,000 | 36,040 | Mar 2024 |
| 26 | transperfect.com | 7.17/10 | 7,200 | 4,333 | Aug 2018 |
| 27 | pcbs.gov.ps | 7.02/10 | 3,400 | 913 | Aug 2026 |
| 28 | uniza.sk | 7.02/10 | 9 | 24 | Jan 2019 |
| 29 | sef.pt | 7.02/10 | 260 | 101 | Aug 2018 |
| 30 | spravazeleznic.cz | 7.02/10 | 63 | 136 | Aug 2023 |
| 31 | mindev.gov.gr | 7.02/10 | 7 | 53 | Nov 2023 |
| 32 | expertisefrance.fr | 7.02/10 | 150 | 156 | May 2023 |
| 33 | nl.edu | 7.02/10 | 31,800 | 12,601 | Aug 2024 |
| 34 | boras.se | 7.02/10 | 35 | 89 | Jan 2019 |
| 35 | mof.gov.vn | 6.87/10 | 9 | 53 | Jan 2019 |
| 36 | funai.gov.br | 6.87/10 | - | - | Dec 2024 |
| 37 | th-rosenheim.de | 6.85/10 | 700 | 175 | Jan 2023 |
| 38 | parlament.cat | 6.66/10 | 180 | 108 | May 2023 |
| 39 | klinikum-stuttgart.de | 6.63/10 | 89 | 89 | Nov 2025 |
| 40 | isula.corsica | 6.57/10 | 410 | 203 | Jun 2025 |
| 41 | tkgm.gov.tr | 6.49/10 | 240 | 515 | Sep 2026 |
| 42 | yucatan.gob.mx | 6.46/10 | 4,700 | 6,825 | May 2019 |
| 43 | qroo.gob.mx | 6.41/10 | 150 | 110 | Jan 2023 |
| 44 | fijiairways.com | 6.37/10 | 18,100 | 17,011 | May 2019 |
| 45 | nstu.ru | 6.21/10 | 3 | 11 | Jul 2026 |
| 46 | serverdata.net | 6.19/10 | 24 | 12 | Aug 2018 |
| 47 | sanjuan.gob.ar | 6.15/10 | - | - | Aug 2022 |
| 48 | getafe.es | 6.10/10 | 33 | 175 | Nov 2023 |
| 49 | isu.edu.tw | 6.05/10 | 150 | 44 | Aug 2018 |
| 50 | metro.istanbul | 6.00/10 | 2,200 | 1,823 | May 2024 |
| 51 | hydac.com | 5.87/10 | 3,600 | 1,262 | Apr 2025 |
| 52 | cofepris.gob.mx | 5.70/10 | - | - | May 2026 |
| 53 | achs.cl | 5.65/10 | 230 | 980 | Mar 2026 |
| 54 | caritas-im-norden.de | 5.49/10 | 1 | 10 | Jan 2026 |
| 55 | umfiasi.ro | 5.47/10 | 24 | 112 | Aug 2022 |
| 56 | kmg.kz | 5.46/10 | 110 | 62 | Feb 2026 |
| 57 | north-slope.org | 5.44/10 | 29,200 | 2,064 | Jul 2025 |
| 58 | dicle.edu.tr | 5.42/10 | 240 | 137 | Aug 2022 |
| 59 | tsc.gob.hn | 5.36/10 | 520 | 2,373 | Oct 2020 |
| 60 | gouv.cg | 5.31/10 | - | - | Sep 2026 |
| 61 | idrbt.ac.in | 5.31/10 | 39 | 77 | Sep 2025 |
| 62 | rarom.ro | 5.31/10 | 16 | 68 | Sep 2022 |
| 63 | umi.ac.ug | 5.28/10 | 210 | 51 | Aug 2023 |
| 64 | action.group | 5.27/10 | - | 2 | Sep 2024 |
| 65 | lechnerkozpont.hu | 5.24/10 | 330 | 29 | May 2023 |
| 66 | klinikverbund-suedwest.de | 5.20/10 | 6 | 17 | Feb 2019 |
| 67 | collierschools.com | 5.12/10 | 13,900 | 9,098 | Aug 2018 |
| 68 | jozsefvaros.hu | 5.06/10 | 290 | 35 | Sep 2026 |
| 69 | zimra.co.zw | 5.05/10 | 170 | 283 | Aug 2022 |
| 70 | rauheshaus.de | 4.89/10 | - | - | Dec 2022 |
| 71 | ocfa.org | 4.80/10 | - | - | Mar 2024 |
| 72 | decea.gov.br | 4.75/10 | - | - | Apr 2020 |
| 73 | pbso.org | 4.75/10 | - | - | Feb 2024 |
| 74 | ume.de | 4.74/10 | - | - | Oct 2023 |
| 75 | ibs.ru | 4.73/10 | - | - | Jun 2019 |
| 76 | kaa.go.ke | 4.73/10 | - | - | Jun 2026 |
| 77 | eskisehir.edu.tr | 4.73/10 | - | - | Feb 2026 |
| 78 | yash.com | 4.72/10 | - | - | Jul 2021 |
| 79 | drk-eu.de | 4.72/10 | - | - | Aug 2023 |
| 80 | omsu.ru | 4.71/10 | - | - | May 2020 |
| 81 | unsk.sk | 4.71/10 | - | - | Aug 2025 |
| 82 | wincoil.gov | 4.71/10 | - | - | Oct 2024 |
| 83 | uwimona.edu.jm | 4.71/10 | - | - | Aug 2018 |
| 84 | bankalfalah.com | 4.69/10 | 1,500 | 2,289 | Feb 2023 |
| 85 | spmcil.com | 4.69/10 | - | - | Jan 2019 |
| 86 | vincenz.de | 4.69/10 | - | - | Nov 2024 |
| 87 | euroimmun.de | 4.69/10 | - | - | Jan 2019 |
| 88 | ricacorp.com | 4.69/10 | - | - | May 2024 |
| 89 | kafkas.gr | 4.69/10 | - | - | Dec 2025 |
| 90 | cjtimis.ro | 4.69/10 | - | - | Sep 2026 |
| 91 | ardenne-metropole.fr | 4.69/10 | 1 | 4 | Dec 2023 |
| 92 | stfw.ch | 4.63/10 | - | - | Feb 2025 |
| 93 | iklim.gov.tr | 4.55/10 | - | - | Oct 2025 |
| 94 | cyfuture.com | 4.42/10 | - | - | Sep 2026 |
| 95 | meritushealth.com | 4.41/10 | - | - | Aug 2022 |
| 96 | sunass.gob.pe | 4.37/10 | - | - | Jan 2019 |
| 97 | ucchristus.cl | 4.14/10 | - | - | Nov 2024 |
| 98 | bancoentrerios.com.ar | 4.13/10 | 110 | 479 | Jul 2026 |
| 99 | inpi.gob.ar | 4.13/10 | - | - | May 2020 |
| 100 | grayson.tx.us | 4.13/10 | - | - | Jun 2023 |
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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