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doh.sb

Free, Fast & Privacy-First DNS Resolver - DNS.SB

Last scanned Aug 2, 2026, 12:00 PM · 7 views

89

Overall score

Great

Summary

DNS.SB is a free, fast, and privacy-focused DNS resolver service. This website uses Next.js. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

DNS.SB is a free, fast, and privacy-focused DNS resolver service. Supports DNS over HTTPS (DoH) and DNS over TLS (DoT) with no logging. Protect your online privacy today.

Top issues to fix

6 issues found · 2 high priority

  • TLS certificate expires in 3 days

    Security

    Renew now (or enable auto-renewal) — an expired certificate blocks visitors with a full-page browser warning.

  • Missing Content-Security-Policy header

    Security

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

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

85

SEO

3 issue(s) found

100

Performance

271 ms

75

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 26, 2026

Overall
89
SEO
85
Security
75
Performance
100
Accessibility
100

Organization

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

DNS.SB is a free, fast, and privacy-focused DNS resolver service. Supports DNS over HTTPS (DoH) and DNS over TLS (DoT) with no logging. Protect your online privacy today.

X (Twitter)GitHub

Contact

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

Meta tags

Title
Free, Fast & Privacy-First DNS Resolver - DNS.SB
Description
DNS.SB is a free, fast, and privacy-focused DNS resolver service. Supports DNS over HTTPS (DoH) and DNS over TLS (DoT) with no logging. Protect your online privacy today.
Canonical
https://dns.sb/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
DNS.SB - Free, Fast & Privacy-First DNS Resolver
og:description
DNS.SB is a free, fast, and privacy-focused DNS resolver service. Supports DNS over HTTPS (DoH) and DNS over TLS (DoT) with no logging.
og:type
website
og:url
https://dns.sb/

Twitter Card

twitter:card
summary_large_image
twitter:title
DNS.SB - Free, Fast & Privacy-First DNS Resolver
twitter:description
DNS.SB is a free, fast, and privacy-focused DNS resolver service. Supports DoH and DoT with no logging.

Technologies

Detected frameworks, languages, and tools.

Next.js

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
Valid from
Jul 30, 2026
Valid to
Aug 5, 2026
Days until expiry
3
SAN domains
dns.sb, doh.sb, doq.sb, dot.sb, public-dns-a.dns.sb, public-dns-b.dns.sb

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 0

Links

30 internal · 6 external · 20 broken

Images

4 total · 0 missing alt

Scripts / Styles

36 scripts · 2 stylesheets

JS / CSS size

52.0 KB · 490 B

Page size

107 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Meta description longer than 160 characters
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://doh.sb
Final URL
https://dns.sb/
HTTP status
200
HTTP version
HTTP/2
Response time
269 ms
HTML size
107 KB
Redirect chain
https://doh.sb → https://dns.sb/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does doh.sb use?
doh.sb is built with Next.js.
Is doh.sb secure (HTTPS)?
Yes. doh.sb uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 5, 2026.
Who hosts doh.sb?
Hosting provider information for doh.sb is not available yet.
What is doh.sb's SEO score?
doh.sb scored 85/100 for SEO in the latest analysis (great).
What is doh.sb's overall website score?
doh.sb has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
Has doh.sb's score changed over time?
doh.sb's overall score has declined by 3 points (from 92 to 89) since Jul 26, 2026.