Registered 34 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 354 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 52.13.171.212 54.68.22.26 50.112.202.115 |
|---|---|
| MX | 10 cluster4.us.messagelabs.com 20 cluster4a.us.messagelabs.com |
| NS | edns161.ultradns.net edns161.ultradns.org edns161.ultradns.com edns161.ultradns.biz |
| TXT | _20zfrb0yk6lmjc2livuuktnoistv6v1 v8wgxyg0n89xxphzccu9ukr9dl2askfo _9smn457kif05pxfhwz0f7wmkszy0jdj _942l4k6j7p4sfnlobjuyytu05objthe v=spf1 include:symantec.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.messagelabs.com ~all status-page-domain-verification=k9f7l7gs398h google-site-verification=zap4gJQ1F7J0cs9UEmmxTKTQFH8l7msOibEXZ2IoQgM adobe-idp-site-verification=8022848c-a25c-46e0-84ea-04e5855d848d NgMBOTfcyI1ypf/2w9WVJcWDTTaGuW3WKm070F80pLKJu8KKFPwDwFrMjdflHkDR9V4QQt9CFKCs9YajQ/njuw== _8kpqjqkzzq7je7li140uo0t7jy9l3t3 _16z8h910stop7mt7ar3zrl3sn14y4fp Dynatrace-site-verification=94cafb09-98b8-4fd3-b1be-1f4895f54695__798bsbg1c76qsu1fk6lorofeve Sendinblue-code:6c205b4c91f2da07b2f8541b430ca1c9 dtm-domain-verification=iQ26XU_RJ17ulsIrwwQ-_gJjMFtupKj6DXjW5gV1p2k _1psz6znhj3z3l69wxg3rl3sem1slnpf vnUJHFSFWwFL67USDl5319B+ITnRVemAfJmrU5l0tEPKVHQkQnvAFsvJZEtNiAJJTWpLu4XTAXX6uehAaK/8FA== MS=ms60535775 google-site-verification=9Dq623Il-GRE1vWUhuSuMeTj0LFiKpvidqPENVg2iS8 |
| CAA | {'type': 'CAA', 'issue': 'symantec.com', 'critical': 0} {'type': 'CAA', 'issue': 'entrust.net', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog', 'critical': 0} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} |
| registrar | CSC Corporate Domains, Inc. |
|---|---|
| registered | 1992-11-24 |
| expires | 2027-11-23 |
| last changed | 2026-10-19 |
| owner | CA, Inc. |
| nameservers | edns161.ultradns.biz edns161.ultradns.com edns161.ultradns.net edns161.ultradns.org |
| status | client transfer prohibited server delete prohibited server transfer prohibited server update prohibited |
| valid | yes |
|---|---|
| issuer | DigiCert Inc |
| covers | www.broadcom.com, broadcom.com, broadcom.cn, www.broadcom.cn, jp.broadcom.com, static.broadcom.com, error.broadcom.com, webapp.broadcom.com, go.broadcom.com, symantec-blogs.broadcom.com, *.aws.broadcom.com, avagotech.com |
| protocol | TLSv1.2 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:symantec.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.messagelabs.com ~all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: selector2, k1, s1, s2, mail |
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 symantec.com.
Reference: /llms.txt.
IPv6. Does symantec.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch symantec.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
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