Registered 41 years ago, on no blocklists we checked, no valid HTTPS certificate, the site answered 200 in 1194 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 144.160.36.42 144.160.155.43 |
|---|---|
| MX | 20 mx0b-00191d01.pphosted.com 10 mxb-00191d01.gslb.pphosted.com 10 mxa-00191d01.gslb.pphosted.com 20 mx0a-00191d01.pphosted.com |
| NS | a4-64.akam.net a22-67.akam.net a1-187.akam.net a2-64.akam.net a11-65.akam.net a5-66.akam.net |
| TXT | _nf8m5hisjvxnliy43grrkcxt4775nre safebreach-domain-verification=87a47aa8-9dcf-4fc6-a0dc-645f6d8f16b7 mongodb-site-verification=aksKamJjSOb7wjKkmOBL0yBoCcDkTD5w atlassian-domain-verification=sKDPLDFqqK6UKBe8hXqLj7n47sRNeN4C0TLWOyJI9jhbsY0Lz0lagoRG9756r6y2 2a35e1cb-656a-4618-b343-cb814065d867 jamf-site-verification=Kzw-u7InjZzANk8Hd_p1Bw google-site-verification=aEiNNWvbfCYfvmE1MB5FDlfTOXscCUfCQSBf5BsZnFQ docusign=96684378-d4b4-426b-aa46-f484dcce317e jamf-site-verification=UPRluCUJKO0tlsh28talrg BeJQ5GrhdR+RKZkfNVneBsIUT2NVqTZB01Y2FXf2+THpvzgedgBjuxOsk3Ub41a8xwwOOxLu+mJTFDrYINC2nw== google-site-verification=y2jV9rmyQx1kZNZuEhu5QqjLPGACb_JSzClilwj4Dr0 twilio-domain-verification=b527bfa6770ac367fc9912a1caa06323 windsurf-verification=lqhQVISbUb5fsOn2Yc0xZyf6v1RamtpB4_erNYSM4fU= google-site-verification=TDlxuIuUQhu-wSUgoz8Tuvpeevqqo4Kge7S-EJFFzrA docusign=7c207f4f-1463-48ab-8a42-401d5a790153 mixpanel-domain-verify=29364abe-5921-4f15-b1f9-92c168b99888 censys-domain-verification=78kpf_YXBG6iZmORvVAIMSeoT9qA_Abl2TQ1NQ5BmvI2 _o7unzg1f3flq9gplgrxiex76xucouzs 4879c66f-d011-43dc-873c-ce5803b4d5a7 7af66ea0-faa0-4d61-a1ff-7624b9d97465 _lf5ez32jnsfjm9iqdgwqkvmtxmni1bv bv-domain-verification=38433e129a5a4d49af430708b3d204a9ccdc03e981b1773fb2ad2b897fe2e2eb ff43041c-55f9-42c5-8263-b168f015ec68 apple-domain-verification=B3sYImneRJaRig6Z? jamf-site-verification=g-kOVDxo7U0trPWTXbALxg docusign=edf26ba5-075c-448c-a7b4-fd68e78606b3 mongodb-site-verification=XfGZRasxOg2vmMw4Bq0fmxB5i8mxHP57 Dynatrace-site-verification=2ef8347e-785b-4bcc-ba67-7adafc0ca244__fv03es9iej68csj426k1spsl9p google-site-verification=_tbHFE4ZquVgPnU4yn9c8mM4AwjDcnyvHYpUyY9W9A0 google-site-verification=GfKQDZJmtFjAfLwMo0CpJSgUgQ14s6EGeH8btHERCzY openai-domain-verification=dv-8mZDN6uQdVFZqUS1INx46eTX _pvc1rwav561hkrmdq14aycsq5pps8xi google-site-verification=61mMnbAFkug5Ga66TxJwJnHrccqsdXgjaYX4Dzh4fg4 v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all anthropic-domain-verification-gwxhjr=xYTl1LLbzEOKWZYjmzjMKm9zm docusign=cd78ab12-bff3-4e95-9d5e-40b4a6c64e28 |
| registrar | CSC Corporate Domains, Inc. |
|---|---|
| registered | 1986-04-25 |
| expires | 2027-04-26 |
| last changed | 2026-04-22 |
| owner | AT&T SERVICES, INC. |
| nameservers | a1-187.akam.net a11-65.akam.net a2-64.akam.net a22-67.akam.net a4-64.akam.net a5-66.akam.net |
| status | client transfer prohibited server delete prohibited server transfer prohibited server update prohibited |
| valid | no |
|---|---|
| problem | Could not resolve host (EREFUSED) |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: s1, s2 |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on att.com.
Reference: /llms.txt.
Watch att.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
Watch — $1 / 30 days