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adguard-dns.io

AdGuard DNS — ad-blocking DNS server

Last scanned Jul 26, 2026, 3:19 PM

83

Overall score

Great

Summary

Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet. This website is hosted on Cloudflare. SEO is excellent (100/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (90/100).

Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.

Spain
Hosted on Cloudflare

Top issues to fix

6 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

100

SEO

0 issue(s) found

90

Performance

621 ms

65

Security

HTTPS & header checks

70

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
AdGuard DNS — ad-blocking DNS server
Description
Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.
Canonical
https://adguard-dns.io/en/welcome.html
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
AdGuard DNS — ad-blocking DNS server
og:description
Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.
og:type
website
og:url
https://adguard-dns.io/en/welcome.html

Twitter Card

twitter:card
summary_large_image
twitter:title
AdGuard DNS — ad-blocking DNS server
twitter:description
Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
195.216.190.134
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 195.216.190.134
AAAA
MX
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • aspmx.l.google.com
TXT
  • google-site-verification=tNwrp0B-lYNzu9wfieSpOr3TJn2_VUpnbC_ZKzXjDSM
  • google-site-verification=KyGUXmqvA6jWE5LkiyZMSgVNHKa0mJWmgtWgzJ80AP8
  • v=spf1 include:_spf.elasticemail.com include:amazonses.com include:mail.zendesk.com include:_spf.google.com ~all
  • google-site-verification=mVuHr4xDNmsnNzOur4t7m_HEX_-Tw6eUfwsc17GCCnw
NS
  • todd.ns.cloudflare.com
  • kim.ns.cloudflare.com
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
ZeroSSL GmbH
Subject
*.adguard-dns.io
Valid from
Jun 14, 2026
Valid to
Sep 12, 2026
Days until expiry
48
SAN domains
*.adguard-dns.io, adguard-dns.io

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 19

Links

21 internal · 43 external · 0 broken

Images

21 total · 15 missing alt

Scripts / Styles

5 scripts · 2 stylesheets

JS / CSS size

4.5 KB · 323 KB

Page size

210 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
9
sitemap.xml
Found
URLs in sitemap
16

SEO issues

No SEO issues detected.

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://adguard-dns.io
Final URL
https://adguard-dns.io/en/welcome.html
HTTP status
200
HTTP version
HTTP/2
Response time
617 ms
HTML size
210 KB
Redirect chain
https://adguard-dns.io → https://adguard-dns.io/en/welcome.html

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Frequently asked questions

What technology does adguard-dns.io use?
We did not detect any specific technologies for adguard-dns.io in the latest scan.
Is adguard-dns.io secure (HTTPS)?
Yes. adguard-dns.io uses TLS 1.3 with a certificate issued by ZeroSSL GmbH, valid until Sep 12, 2026.
Who hosts adguard-dns.io?
adguard-dns.io is hosted on Cloudflare, behind Cloudflare CDN.
What is adguard-dns.io's SEO score?
adguard-dns.io scored 100/100 for SEO in the latest analysis (excellent).
What is adguard-dns.io's overall website score?
adguard-dns.io has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.