Microsoft lookalike domains
Greyphish has recorded 1,942 domains that resemble Microsoft since February 2026, 416 of them in the last 90 days. Nearly all of them (91%) are combosquats: Microsoft's name or one of its product names spelled correctly with a word added, most often “online”, “web”, “support”. .com carries 42% of them, out of 166 endings in all. The pace has picked up, with 207 in the last 30 days against 95 in the 30 before. 1,144 certificates for unregistered .ph, .com.ph, .net.ph names (registry wildcard) are excluded: the registry answers for any name under those endings, so nobody had to register one to get a certificate for it.
Data as of . Public sources only.
What kind of lookalikes
One or two keystrokes away from the real name: a letter dropped, doubled, swapped or mistyped. More
A letter swapped for one that looks the same, in ASCII or in Unicode written as punycode. More
Words most often added to the name in the last 90 days: online (43), web (38), support (34), app (34), login (30), service (27).
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Homoglyph | Total |
|---|---|---|---|---|
| 2026-04-20 | 3 | 65 | 0 | 68 |
| 2026-04-27 | 0 | 45 | 0 | 45 |
| 2026-05-04 | 2 | 24 | 1 | 27 |
| 2026-05-11 | 1 | 40 | 1 | 42 |
| 2026-05-18 | 1 | 35 | 2 | 38 |
| 2026-05-25 | 1 | 22 | 0 | 23 |
| 2026-06-01 | 3 | 25 | 2 | 30 |
| 2026-06-08 | 0 | 28 | 0 | 28 |
| 2026-06-15 | 0 | 32 | 0 | 32 |
| 2026-06-22 | 1 | 31 | 1 | 33 |
| 2026-06-29 | 0 | 22 | 2 | 24 |
| 2026-07-06 | 1 | 20 | 4 | 25 |
| 2026-07-13 | 1 | 33 | 0 | 34 |
| 2026-07-20 | 0 | 32 | 2 | 34 |
| 2026-07-27 | 0 | 28 | 1 | 29 |
| 2026-08-03 | 0 | 18 | 0 | 18 |
| 2026-08-10 | 2 | 18 | 1 | 21 |
| 2026-08-17 | 1 | 23 | 1 | 25 |
| 2026-08-24 | 2 | 12 | 1 | 15 |
| 2026-08-31 | 1 | 28 | 0 | 29 |
| 2026-09-07 | 0 | 17 | 1 | 18 |
| 2026-09-14 | 1 | 27 | 0 | 28 |
| 2026-09-21 | 0 | 19 | 2 | 21 |
| 2026-09-28 | 1 | 52 | 1 | 54 |
| 2026-10-05 | 1 | 75 | 1 | 77 |
| 2026-10-12 | 0 | 28 | 0 | 28 |
Endings
The 8 most used of the 166 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .com | 812 | 41.8% |
| .de | 144 | 7.4% |
| .net | 76 | 3.9% |
| .co.uk | 43 | 2.2% |
| .live | 39 | 2.0% |
| .online | 37 | 1.9% |
| .org | 33 | 1.7% |
| .ru | 31 | 1.6% |
Where they are registered
For the 868 with a registrar in WHOIS (45% of all). Brand-protection registrars mostly hold defensive registrations made by brands themselves, so a domain there is more likely the brand's own than an imitation.
| Registrar | Lookalikes | Share | Type |
|---|---|---|---|
| GoDaddy | 120 | 13.8% | Retail |
| Cloudflare | 81 | 9.3% | Retail |
| Squarespace | 79 | 9.1% | Retail |
| Dynadot | 50 | 5.8% | Retail |
| GMO Internet Group | 33 | 3.8% | Retail |
| Namecheap | 31 | 3.6% | Retail |
| Porkbun | 31 | 3.6% | Retail |
| NameSilo | 30 | 3.5% | Retail |
What the live ones do
431 of these lookalikes were registered and checked for a website and mail: 201 (47%) served a website and 213 (49%) publish MX records, so they can receive email. Checks run on the higher-severity matches that resolve, not on every lookalike.
Google Web Risk lists 6 of the 107 live ones checked against it (6%).
122 were tracked while live and 5 have since gone down, a median 19h 0m after they were first seen. See what to do about a lookalike.
Recent examples
The 10 most recent, written with [.] so they cannot be clicked. The brand's own domains and registrations held by brand-protection registrars are left out. A lookalike resembles Microsoft; it is not necessarily malicious, and none of these is a claim about who registered it or why.
confirmsupportmicrosoft[.]comCombo, Oct 14MX recordsmicrosoftsupport[.]sbsCombo, Oct 14No site or mail when checkedcontact-helpmicrosoft[.]comCombo, Oct 14MX recordssupports-helpmicrosoft[.]comCombo, Oct 14MX recordsazureappfoundry[.]comCombo, Oct 14Serves a websitehelped-supportmicrosoft[.]comCombo, Oct 13MX recordsoffice365-cloud-sync-service[.]techCombo, Oct 13Not checkedazureupdate[.]comCombo, Oct 13MX recordssupport-office-desk[.]comCombo, Oct 13Not checkedazureservicesnv[.]comCombo, Oct 13MX records
Or watch it free: Greyphish tells you when a new lookalike of your domain is registered or goes live.
Further reading
More in big tech
Greyphish is not affiliated with Microsoft. Domains listed resemble Microsoft by spelling; registration alone says nothing about intent. Counts cover domains first seen in public Certificate Transparency logs and ICANN zone files; domains that Greyphish customers watch are excluded.