HOW.IS
?

How is sentry.io?

Looks fine risk 0/100

Registered 15 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 203 ms.

Why

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

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

How sentry.io looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
203 ms
HTTPS
118 d
left on a DigiCert Inc certificate
Age
15 years
registered 2012-04-07
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A34.111.148.117
34.8.226.60
MX10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
50 alt4.aspmx.l.google.com
20 alt2.aspmx.l.google.com
50 alt3.aspmx.l.google.com
NSns-cloud-d2.googledomains.com
ns-cloud-d4.googledomains.com
ns-cloud-d1.googledomains.com
ns-cloud-d3.googledomains.com
TXTgoogle-site-verification=i0zvNt7LI2Y0qQRWIFCKYPud8_MGng5i5bBb3wVgljM
google-site-verification=O_I2cXzFPatyfqnLOI7WFlFbB5ewmERMnUOMt31BRjs
82CB80AA6A
notion-domain-verification=DIDkO5IIeUGX0AMjzjBjTmGcy6vIjOiH7lTvGf7yJj4
google-site-verification=IUqYHsya4QqI4hELwmRVS7gzTtVSQVlKom181og5xNs
MS=83FA471E7570AA78ED77B729EFE77ADF28C6DFA2
google-site-verification=FHGqXJeILY9odYta__5tuEzAk9Z3GPYBxnmtzrV9q3U
google-site-verification=ObswIIBtNaASFVNuRT7g0gqpFsnfp83TdHASnP8gcxs
apple-domain-verification=Aq2K4zadyt2CS6sK
google-site-verification=vtlO-FzJLXp_VnrOYVCLcgzjUPJDgvP_i6genmZfp9s
ZOOM_verify_EG6_kEWER6u4eHEy-i0lBw
v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendgrid.net include:mktomail.com -all
mgverify=b1b31496f8a11b6a792fafc7f5c3a3b3ff5ea0b4ff73702e6868a7821bdc4825
699b17b5-0406-44b1-b642-39b398e071cb
_hfh8pdnbjmfdca0zkigvjq20wepe6ea
openai-domain-verification=dv-sLSoiuAzGoi1JmntxL3ZOTzl
bitrise-verification=82d47bd2332e7907-JdmDZG9EmPW9
linear-domain-verification=d77mb72my2q9
fastly-domain-delegation-W8k1SJs3XuoC2JQZYPkdsmdKdd09L0V0wx4-20180612
cloudflare_dashboard_sso=45d126329fa9f9042859b736e9b6ecca
cursor-domain-verification-yybzt5=ZwvnX7XES6QcFtlwVDBUmr8vf
linear-domain-verification=993u3eirym9h
stripe-verification=0FA6345EA1A89D0885B16CF56AB6C893C19D4AB8F673B0B8AE1E6CF33FDD4DFD
dropbox-domain-verification=mbrg6ujh4r90
miro-verification=058fca15d28773dcefde3bef106f4184adf32167
docusign=4d3c0a3c-f31f-47b5-83b4-913749ae5eda
53bwpzxr3bwymbd8mggzcggsh00k72tw
anthropic-domain-verification-bf2t84=NjmsryxsUN1QUHk0YTnPg61s0
h1-domain-verification=R5Hoe4rxMTsiMx2DwiCV7GNNhjh6vgonQE2YVkbMQfmcd8fs
docker-verification=d81b7996-578a-4749-904b-f1336e0cc58d
cisco-ci-domain-verification=97ffe9bfc836f5fddf2b87e40cc41c92cedb080807d0a649be50d063984e9fa
atlassian-sending-domain-verification=66b25870-b898-444e-b59f-680b2efa07ba
atlassian-domain-verification=iiuI98qnuSg2OEb25fN3FJ3Rrmh+ur5j+LY4jFtC1Z2LYQGGTdiBSkTyBSuvtFnw
CAA{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'iodef': 'mailto:security@sentry.io', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
RegistrationGandi SAS
registrarGandi SAS
registered2012-04-07
expires2027-04-07
last changed2026-08-12
ownerFunctional Software, Inc dba Sentry
nameserversns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d4.googledomains.com
statusclient transfer prohibited
registered 2012-04-07expires 2027-04-07
HTTPS certificate118 days left
validyes
issuerDigiCert Inc
coverssentry.io, *.sentry.io
protocolTLSv1.3
issued 2026-08-06expires 2027-02-20
DNSSECinsecure

Domain is not signed with DNSSEC

. → io → sentry.io
Email authenticationexcellent
SPFpass v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendgrid.net include:mktomail.com -all
DMARCpass policy reject
DKIMfound: google, k1

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

Security scoregrade B · 170/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
45/45missing: DKIM Presence
Advanced Security
20/25missing: IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop34.8.226.60Barracuda34.8.226.60UCEPROTECT Level 134.8.226.60SpamCop34.111.148.117Barracuda34.111.148.117UCEPROTECT Level 134.111.148.117

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=sentry.io" \ -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=sentry.io"

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

Watch sentry.io. 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