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77
Total
75
DNS
90
Email
73
Security
20
Network
100
Availability
Domainadblockplus.org
IPv41
IPv60
MX records5
StatusActive
Domain technical report

Adblock Plus | The world's #1 free ad blocker

adblockplus.org

Adblock Plus, the most popular ad blocker on Firefox, Chrome, Safari, Android and iOS. Block pop-ups and annoying ads on websites like Facebook and YouTube.

Generated: 2026-08-09T10:05:32-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv60
MX5
NS6

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

6 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

✓
CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

5 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

51 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
199.36.158.100

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
10 aspmx2.googlemail.com.
5 alt2.aspmx.l.google.com.
1 aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
10 aspmx3.googlemail.com.

TXT

7 record(s)
"google-site-verification=WscIWU4ciCgJXgNh6k-Z0yJQOD7H1h_N1f3kxsNpLEA"
"google-site-verification=ak3vKsHGYb11rfkIp1xY3q3xf-gqTIcjOCqTYLBAK-k"
"hosting-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"

NS

6 record(s)
pdns73.ultradns.biz.
pdns73.ultradns.org.
pdns73.ultradns.com.
pdns73.ultradns.info.
pdns73.ultradns.net.
pdns73.ultradns.co.uk.

SOA

1 record(s)
pdns73.ultradns.com. hostmaster.adblockplus.org. 2025062810 86400 86400 86400 86400

CAA

8 record(s)
0 issue "amazonaws.com"
0 issue "awstrust.com"
0 issue "amazon.com"
0 issue "letsencrypt.org"
0 issue "amazontrust.com"
0 issue "pki.goog"
0 issue "digicert.com"
0 issue "sectigo.com"

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:spf1.adblockplus.org include:_spf.google.com include:sendgrid.net -all

DMARC

Configured
v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@adblockplus.org

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnJ6U+dfW2krd/XlV5OcMeuks2LU6MrCZMue5Y4okecIexYyI8GlhC9s7U4nHf/xCrHCysqbp2Wwo55lRrGLY3X33/oC85+O/wpA5BCldePbE/iq4y609IAJyqWopWT+dd7YmijF22Jg+grt5t3LuwsBwBZuDTdmJy9xb0sGrAvR+kJT3+1t1UNbETV0RlIZIIgR0jPeCcD9AlFvtuBWd1iOmcFF54WCT+FMf6BOlvZQgafNodNUcJFQHHMYJXxdoAd5l1tpJkMnR4XnXmqNUfBsqGV+Q+8SP4vvFGLLAgHsYMVAOX6F5eXAmczBwq8OZzQJspvb74fUYbY1kgJU6uQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Adblock Plus | The world's #1 free ad blocker
Description
Adblock Plus, the most popular ad blocker on Firefox, Chrome, Safari, Android and iOS. Block pop-ups and annoying ads on websites like Facebook and YouTube.
Final URL
https://adblockplus.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://adblockplus.org/
Version
3
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Google Trust Services
CN
www.adblockplus.dev
Valid from
2026-07-01T21:12:01-05:00
Valid until
2026-09-29T22:11:21-05:00
Days remaining
51
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
199.36.158.100
40,08 ms
Cloudflare
1.1.1.1
199.36.158.100
26,43 ms
Quad9
9.9.9.9
199.36.158.100
54,41 ms
OpenDNS
208.67.222.222
199.36.158.100
51,75 ms
AdGuard
94.140.14.14
199.36.158.100
67,41 ms

IP, geolocation and ASNAssociated network information

199.36.158.100

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

aspmx2.googlemail.com

Port 25: Closed/unreachable - 0.8 ms - 
Port 465: Closed/unreachable - 4032.6 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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