HOW.IS
?

How is ultradns.com?

Looks fine risk 0/100

Registered 28 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 79 ms.

Why

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

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

How ultradns.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
79 ms · ends at www.digicert.com
HTTPS
43 d
left on a DigiCert Inc certificate
Age
28 years
registered 1998-06-29
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A204.74.99.200
AAAA2610:a1:3094::200
MX0 ultradns-com.mail.protection.outlook.com
NSns61.ultradns2.org
pdns196.ultradns.com
pdns196.ultradns.info
pdns196.ultradns.net
pdns196.ultradns.co.uk
pdns196.ultradns.org
ns61.ultradns2.com
pdns196.ultradns.biz
TXTpostman-domain-verification=ff2322f273f344b95794fae219801438445a65f334339c66ef07df6d23bed42d4969c3e6f7e9b1af7a17d02b94a011377c9b84d93b689acb1712816049831721
MS=ms13500977
vvRWDjirF1kB3svP5yCIHlovQ99/rxi+VEivELNFqBvdbPZGOgtqL4qOFWfAQ0uB1o2tXEs/Ex6sgBJxaot6ig==
_13qvfptv0ls6dbj6y376g9tej23ux67
MS=ms21611534
v=spf1 include:spf.protection.outlook.com include:mktomail.com include:zohomail360.com include:mail.zendesk.com include:amazonses.com ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:156.154.17.104 ip4:156.154.134.1 -all
_45dy2p5fs6zvgo396nhxt4j0cszgud8
CAA{'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com'}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'issuewild': 'amazonaws.com'}
RegistrationCSC Corporate Domains, Inc.
registrarCSC Corporate Domains, Inc.
registered1998-06-29
expires2027-06-28
last changed2026-06-24
ownerVercara, LLC
nameserversns61.ultradns2.com
ns61.ultradns2.org
pdns196.ultradns.biz
pdns196.ultradns.co.uk
pdns196.ultradns.com
pdns196.ultradns.info
pdns196.ultradns.net
pdns196.ultradns.org
statusclient transfer prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 1998-06-29expires 2027-06-28
HTTPS certificate43 days left
validyes
issuerDigiCert Inc
covers*.ultradns.com, ultradns.com
protocolTLSv1.3
issued 2026-10-13expires 2026-12-11
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → ultradns.com
Email authenticationexcellent
SPFpass v=spf1 include:spf.protection.outlook.com include:mktomail.com include:zohomail360.com include:mail.zendesk.com include:amazonses.com ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:156.154.17.104 ip4:156.154.134.1 -all
DMARCpass policy reject
DKIMfound: selector1

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

Security scoregrade A · 175/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
45/45missing: DKIM Presence
Advanced Security
15/25missing: Mail Server Configuration, SOA Record Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop204.74.99.200Barracuda204.74.99.200UCEPROTECT Level 1204.74.99.200

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=ultradns.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=ultradns.com"

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

Watch ultradns.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