HOW.IS
?

How is quantserve.com?

Looks fine risk 0/100

Registered 21 years ago, on no blocklists we checked, valid HTTPS, the site answered HTTP 503.

Why

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

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

Site
503
215 ms
HTTPS
74 d
left on a Let's Encrypt certificate
Age
21 years
registered 2005-06-20
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A54.214.172.129
NSns-128.awsdns-16.com
ns-1370.awsdns-43.org
ns-1984.awsdns-56.co.uk
ns-531.awsdns-02.net
TXTpvvg3j4v342jbn5mjp3ggzw4b5s6rtjp
v=spf1 -all
CAA{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered2005-06-20
expires2028-06-20
last changed2026-05-19
ownerREDACTED FOR PRIVACY
nameserversns-128.awsdns-16.com
ns-1370.awsdns-43.org
ns-1984.awsdns-56.co.uk
ns-531.awsdns-02.net
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 2005-06-20expires 2028-06-20
HTTPS certificate74 days left
validyes
issuerLet's Encrypt
covers*.apextag.com, *.quantcount.com, *.quantsense.com, *.quantserve.com, apextag.com, quantcount.com, quantserve.com
protocolTLSv1.3
issued 2026-10-12expires 2027-01-10
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → quantserve.com
Email authenticationpoor
SPFpass v=spf1 -all
DMARCnone
DKIMnone of 1 common selectors

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

Security scoregrade B · 155/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
30/45missing: DMARC Record, DKIM Presence
Advanced Security
10/25missing: Mail Server Configuration, IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop54.214.172.129Barracuda54.214.172.129UCEPROTECT Level 154.214.172.129

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=quantserve.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=quantserve.com"

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

Watch quantserve.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