HOW.IS
?

How is feedburner.com?

Looks fine risk 0/100

Registered 23 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 60 ms.

Why

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

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

How feedburner.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
60 ms · ends at feedburner.google.com
HTTPS
58 d
left on a Google Trust Services certificate
Age
23 years
registered 2003-12-02
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A192.179.18.102
192.179.18.113
192.179.18.100
192.179.18.101
192.179.18.139
192.179.18.138
AAAA2607:f8b0:4004:c2d::8b
2607:f8b0:4004:c2d::66
2607:f8b0:4004:c2d::71
2607:f8b0:4004:c2d::8a
MX0 smtp.google.com
NSns3.google.com
ns4.google.com
ns1.google.com
ns2.google.com
TXTv=spf1 include:_spf.google.com ~all
CAA{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered2003-12-02
expires2027-12-02
last changed2026-10-31
ownerREDACTED FOR PRIVACY
nameserversns1.google.com
ns2.google.com
ns3.google.com
ns4.google.com
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 2003-12-02expires 2027-12-02
HTTPS certificate58 days left
validyes
issuerGoogle Trust Services
coversmisc.google.com, *.actions.google.com, *.baseline.google.com, *.developer.google.com, *.developers.google.com, *.ewoq.google.com, *.arvr.google.com, *.eu.aiapp.cloud.goog, *.eu.aiapp.cloud-staging.goog, *.eu.aiapp.cloud-test.goog, *.firebase.google.com, *.ggp.google.com
protocolTLSv1.3
issued 2026-10-07expires 2026-12-30
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → feedburner.com
Email authenticationgood
SPFpass v=spf1 include:_spf.google.com ~all
DMARCpass policy reject
DKIMnone of 1 common selectors

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

Security scoregrade B · 165/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
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 · 17 lookups
SURBL MultidomainURIBL MultidomainSpamCop172.253.62.102Barracuda172.253.62.102UCEPROTECT Level 1172.253.62.102SpamCop172.253.62.100Barracuda172.253.62.100UCEPROTECT Level 1172.253.62.100SpamCop172.253.62.139Barracuda172.253.62.139UCEPROTECT Level 1172.253.62.139SpamCop172.253.62.101Barracuda172.253.62.101UCEPROTECT Level 1172.253.62.101SpamCop172.253.62.138Barracuda172.253.62.138UCEPROTECT Level 1172.253.62.138

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=feedburner.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=feedburner.com"

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

IPv6. IPv6 readiness grade for feedburner.com Does feedburner.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch feedburner.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