HOW.IS
?

How is one.com?

Looks fine risk 0/100

Registered 35 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 869 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

How one.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
869 ms · ends at www.one.com
HTTPS
54 d
left on a Let's Encrypt certificate
Age
35 years
registered 1992-02-12
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A195.47.247.8
195.47.247.9
AAAA2a02:2350:6::6514:e26d
MX10 mx1.pub.mailpod12-cph3.one.com
10 mx2.pub.mailpod12-cph3.one.com
10 mx3.pub.mailpod12-cph3.one.com
10 mx4.pub.mailpod12-cph3.one.com
NSauth.g1-dns.com
auth.g1-dns.one
TXTMS=ms80165880
0c2ce30eb74af62b8f39fe80d2821090
apple-domain-verification=NW7F5wIbiIMoDyGn
status-page-domain-verification=jxn9sv5yjjk0
facebook-domain-verification=bzipsayq3fcwysb04sfrb7n28umr70
slack-domain-verification=cKfMkGzW2T6D9IwrAfw3WqEMiCNY7Xsnd5cMo7VQ
google-site-verification=4Lzw-cbsiavKFAeFkvS2gV5_0WSmzGm_yFpWuUy0gTw
google-site-verification=PxhP_oeeJYM6XtUKPbyWuAA4BSR1OgKY5Il_zMhZZ4g
google-site-verification=SJnzgdADXmE_K3rQEbVVmYXgxa_0Auh5oDN4KBGp_n8
atlassian-domain-verification=KKeihQSanTHe0l1pqlAF48oghg9rSqxhRZakMd/Gq8e8xTF/maaW2agw60HZU5va
v=spf1 include:_spf.one.com include:spf.mail.intercom.io include:mail.zendesk.com include:spf.mandrillapp.com include:servers.mcsv.net include:spf.protection.outlook.de include:secure-mailgate.com ~all
RegistrationCSL Computer Service Langenbach GmbH d/b/a joker.com
registrarCSL Computer Service Langenbach GmbH d/b/a joker.com
registered1992-02-12
expires2036-02-13
last changed2026-06-22
nameserversauth.g1-dns.com
auth.g1-dns.one
statusclient transfer prohibited
registered 1992-02-12expires 2036-02-13
HTTPS certificate54 days left
validyes
issuerLet's Encrypt
covers*.one.com, one.com
protocolTLSv1.3
issued 2026-09-24expires 2026-12-23
DNSSECsecure

Domain is properly signed — chain validated by an independent validating resolver

. → com → one.com
Email authenticationexcellent
SPFpass v=spf1 include:_spf.one.com include:spf.mail.intercom.io include:mail.zendesk.com include:spf.mandrillapp.com include:servers.mcsv.net include:spf.protection.outlook.de include:secure-mailgate.com ~all
DMARCpass policy reject
DKIMfound: k1

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade B · 165/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
30/45missing: CAA Records, DKIM Presence
Advanced Security
20/25missing: SOA Record Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop195.47.247.9Barracuda195.47.247.9UCEPROTECT Level 1195.47.247.9SpamCop195.47.247.8Barracuda195.47.247.8UCEPROTECT Level 1195.47.247.8

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

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.

curl "https://how.is/v1/domain/trust?domain=one.com" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=one.com"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on one.com. Reference: /llms.txt.

Watch one.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