adblockplus.org
Adblock Plus | The world's #1 free ad blocker
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Excellent
Top issues to fix
5 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
Summary
Adblock Plus, the most popular ad blocker on Firefox, Chrome, Safari, Android and iOS. This website uses Google Analytics hosted on Fastly. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.
SEO
3 issue(s) found
Performance
262 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Source: https://adblockplus.org/help
Meta tags
- 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.
- Canonical
- https://adblockplus.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Fastly
- CDN provider
- —
- IP address
- 199.36.158.100
- ASN
- AS54113 (FASTLY - Fastly, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.adblockplus.dev
- Valid from
- Jul 2, 2026
- Valid to
- Sep 30, 2026
- Days until expiry
- 73
- SAN domains
- www.adblockplus.dev, adblockplus.org, accounts.adblockplus.org, new.adblockplus.org, welcome.adblockplus.org, www.adblockplus.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 4 · H2 7 · H3 0
Links
40 internal · 20 external · 0 broken
Images
23 total · 1 missing alt
Scripts / Styles
37 scripts · 5 stylesheets
JS / CSS size
53.8 KB · 65.4 KB
Page size
48.2 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 27
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://adblockplus.org
- Final URL
- https://adblockplus.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 262 ms
- HTML size
- 48.2 KB
- Redirect chain
- https://adblockplus.org
Related websites
Same technology stack
opera.com
Opera Web Browser | Faster, Safer, Smarter | Opera
okx.com
Buy Bitcoin & Crypto | Crypto Exchange, App & Wallet | OKX
intuit.com
Intuit®: Outdo your financial goals—all in one place
datadoghq.com
Cloud Monitoring as a Service | Datadog
forter.com
Forter – Agentic Intelligence you can trust
mozilla.com
Firefox: The fast, private browser that keeps you safe — Firefox.com
Same hosting provider
firefox.com
Firefox: The fast, private browser that keeps you safe — Firefox.com
mozilla.com
Firefox: The fast, private browser that keeps you safe — Firefox.com
pypi.org
PyPI · The Python Package Index
zend.com
Enterprise PHP Development Platform | Expert PHP Support | Zend
cloud.com
Cloud Software Group home
adroll.com
Multichannel Advertising & Account-Based Marketing Platform | AdRoll
Frequently asked questions
- What technology does adblockplus.org use?
- adblockplus.org is built with Google Analytics.
- Is adblockplus.org secure (HTTPS)?
- Yes. adblockplus.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 30, 2026.
- Who hosts adblockplus.org?
- adblockplus.org is hosted on Fastly.
- What is adblockplus.org's SEO score?
- adblockplus.org scored 80/100 for SEO in the latest analysis (great).
- What is adblockplus.org's overall website score?
- adblockplus.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Is adblockplus.org hiring?
- adblockplus.org has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card