HOW.IS
?

How is certcenter.com?

Looks fine risk 0/100

Registered 23 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 207 ms.

Why

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

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

How certcenter.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
207 ms · ends at www.digicert.com
HTTPS
70 d
left on a DigiCert Inc certificate
Age
23 years
registered 2003-05-14
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A216.168.244.42
NSns25.digicertdns.net
pdns196.ultradns.net
ns23.digicertdns.net
pdns196.ultradns.org
ns20.digicertdns.com
ns24.digicertdns.net
pdns196.ultradns.com
ns21.digicertdns.com
ns22.digicertdns.com
pdns196.ultradns.biz
TXT_ao03ydz7z1jiknpfa0fut4x2umhze97
CAA{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com'}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered2003-05-14
expires2029-05-14
last changed2025-04-13
ownerREDACTED FOR PRIVACY
nameserversns20.digicertdns.com
ns21.digicertdns.com
ns22.digicertdns.com
ns23.digicertdns.net
ns24.digicertdns.net
ns25.digicertdns.net
pdns196.ultradns.biz
pdns196.ultradns.com
pdns196.ultradns.net
pdns196.ultradns.org
statusclient delete prohibited
client transfer prohibited
client update prohibited
registered 2003-05-14expires 2029-05-14
HTTPS certificate70 days left
validyes
issuerDigiCert Inc
covers*.certcenter.com, certcenter.com
protocolTLSv1.3
issued 2026-06-22expires 2027-01-06
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → certcenter.com
Email authenticationpoor
SPFnone
DMARCnone
DKIMnone of 1 common selectors

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

Security scoregrade B · 135/190
Basic Security
20/40missing: DNSSEC Enabled
Record Security
15/30missing: SPF Record, DMARC Record, DKIM Presence
Advanced Security
5/25missing: Mail Server Configuration, SOA Record Configuration, IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop216.168.244.42Barracuda216.168.244.42UCEPROTECT Level 1216.168.244.42

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=certcenter.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=certcenter.com"

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

Watch certcenter.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