HOW.IS
?

How is googlesyndication.com?

Looks fine risk 0/100

Registered 24 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 94 ms.

Why

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

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

How googlesyndication.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
94 ms · ends at www.google.com
HTTPS
56 d
left on a Google Trust Services certificate
Age
24 years
registered 2003-01-21
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A192.178.218.99
192.178.218.103
192.178.218.105
192.178.218.147
192.178.218.104
192.178.218.106
AAAA2607:f8b0:4004:c25::6a
2607:f8b0:4004:c25::68
2607:f8b0:4004:c25::67
2607:f8b0:4004:c25::93
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.
registered2003-01-21
expires2027-01-21
last changed2025-12-20
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 2003-01-21expires 2027-01-21
HTTPS certificate56 days left
validyes
issuerGoogle Trust Services
covers*.g.doubleclick.net, *.invitemedia.com, g.doubleclick.net, googleadservices.com, *.googleadservices.com, googlesyndication.com, *.googlesyndication.com, *.safeframe.googlesyndication.com, googletagservices.com, *.googletagservices.com, media.admob.com, mediation.goog
protocolTLSv1.3
issued 2026-09-28expires 2026-12-21
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → googlesyndication.com
Email authenticationpoor
SPFwarning v=spf1 include:_spf.google.com ?all
DMARCwarning policy none
DKIMnone of 1 common selectors

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

Security scoregrade B · 151/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
31/45missing: SPF Record, DMARC Record, 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 MultidomainSpamCop192.178.218.103Barracuda192.178.218.103UCEPROTECT Level 1192.178.218.103SpamCop192.178.218.99Barracuda192.178.218.99UCEPROTECT Level 1192.178.218.99SpamCop192.178.218.104Barracuda192.178.218.104UCEPROTECT Level 1192.178.218.104SpamCop192.178.218.106Barracuda192.178.218.106UCEPROTECT Level 1192.178.218.106SpamCop192.178.218.105Barracuda192.178.218.105UCEPROTECT Level 1192.178.218.105

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=googlesyndication.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=googlesyndication.com"

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

Watch googlesyndication.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