Registered 26 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 615 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 2.23.136.4 |
|---|---|
| MX | 10 smtp.steampowered.com |
| NS | a7-66.akam.net a24-64.akam.net a1-194.akam.net a2-64.akam.net a9-66.akam.net a22-67.akam.net |
| TXT | v=spf1 ip4:208.64.202.32/27 ip6:2602:801:f000:1234::/64 ip4:208.64.202.128/27 ip6:2602:801:f00c:1234::/64 ip4:208.64.202.192/27 ip6:2602:801:f00f:1234::/64 -all google-site-verification=mi-0skdaq4tg4owg4lUJpeS-vWiiBsrQqnY9tVXb7es |
| CAA | {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog', 'critical': 0} {'type': 'CAA', 'issue': 'digicert.com', 'critical': 0} {'type': 'CAA', 'iodef': 'mailto:ssl-abuse@valvesoftware.com', 'critical': 0} |
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 2000-08-09 |
| expires | 2028-08-09 |
| last changed | 2024-09-05 |
| owner | REDACTED FOR PRIVACY |
| nameservers | a1-164.akam.net a11-67.akam.net a24-64.akam.net a26-65.akam.net a8-66.akam.net a9-67.akam.net |
| status | client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | aperturescience.com, community.steam-api.com, counter-strike.net, dayofdefeat.com, forums.l4d.com, half-life.com, half-life2.com, help.steampowered.com, l4d.com, learnwithportals.com, midnight-riders.com, orange.half-life2.com |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 ip4:208.64.202.32/27 ip6:2602:801:f000:1234::/64 ip4:208.64.202.128/27 ip6:2602:801:f00c:1234::/64 ip4:208.64.202.192/27 ip6:2602:801:f00f:1234::/64 -all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: smtp |
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 steampowered.com.
Reference: /llms.txt.
Watch steampowered.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