HOW.IS
?

How is adblockplus.org?

Looks fine risk 0/100

Registered 20 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 100 ms.

Why

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

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

How adblockplus.org looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
100 ms
HTTPS
31 d
left on a Google Trust Services certificate
Age
20 years
registered 2006-06-09
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A199.36.158.100
MX1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
5 alt2.aspmx.l.google.com
NSpdns73.ultradns.net
pdns73.ultradns.info
pdns73.ultradns.biz
pdns73.ultradns.com
pdns73.ultradns.org
pdns73.ultradns.co.uk
TXThosting-site=adblockplus-org
google-site-verification=ajs_bDmJHH-QbE-gbOPAHYrJGyLYx_bKKUF4A2amIzU
knowbe4-site-verification=863c28da52149dff8953aeda38712adc
google-site-verification=QhWE6Vtk_VsdAUUFBLD-VmT_YFm8wpzO7laxDL0q9ps
v=spf1 include:spf1.adblockplus.org include:_spf.google.com include:sendgrid.net -all
google-site-verification=WscIWU4ciCgJXgNh6k-Z0yJQOD7H1h_N1f3kxsNpLEA
google-site-verification=ak3vKsHGYb11rfkIp1xY3q3xf-gqTIcjOCqTYLBAK-k
CAA{'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0}
{'type': 'CAA', 'issue': 'awstrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazontrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
RegistrationRegistryGate GmbH
registrarRegistryGate GmbH
registered2006-06-09
expires2027-06-09
last changed2026-08-11
nameserverspdns73.ultradns.org
pdns73.ultradns.biz
pdns73.ultradns.com
pdns73.ultradns.info
pdns73.ultradns.net
pdns73.ultradns.co.uk
statusclient transfer prohibited
registered 2006-06-09expires 2027-06-09
HTTPS certificate31 days left
validyes
issuerGoogle Trust Services
coverswww.adblockplus.dev, adblockplus.org, accounts.adblockplus.org, new.adblockplus.org, welcome.adblockplus.org, www.adblockplus.org
protocolTLSv1.3
issued 2026-08-30expires 2026-11-28
DNSSECinsecure

Domain is not signed with DNSSEC

. → org → adblockplus.org
Email authenticationexcellent
SPFpass v=spf1 include:spf1.adblockplus.org include:_spf.google.com include:sendgrid.net -all
DMARCpass policy quarantine
DKIMfound: google, s1, s2

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

Security scoregrade A · 180/205
Basic Security
20/40missing: DNSSEC Enabled
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 · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop199.36.158.100Barracuda199.36.158.100UCEPROTECT Level 1199.36.158.100

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=adblockplus.org" \ -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=adblockplus.org"

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

Watch adblockplus.org. 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