Is quad9.net secure (HTTPS)?

Yes. quad9.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 5, 2026.

quad9.net is hosted on Switch - SWITCH, CH.

What is quad9.net's SEO score?

quad9.net scored 75/100 for SEO in the latest analysis (fair).

What is quad9.net's overall website score?

quad9.net has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

quad9.net has a careers page; check it directly for current openings.

quad9.net

Quad9 | A public and free DNS service for a better security and privacy

Last scanned Jul 21, 2026, 11:40 AM

Overall score

Excellent

Top issues to fix

5 issues found

Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

Summary

A public and free DNS service for a better security and privacy. This website uses Nginx hosted on Switch - SWITCH, CH. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

SEO

4 issue(s) found

100

Performance

869 ms

Security

HTTPS & header checks

100

Accessibility

0 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.

Facebook LinkedIn YouTube GitHub

Contact

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

Source: https://quad9.net/service/locations/

Meta tags

Title: Quad9 | A public and free DNS service for a better security and privacy
Description: A public and free DNS service for a better security and privacy
Canonical
Language: en
Charset: utf-8
Viewport: initial-scale=1.0,width=device-width
Robots meta
Manifest: https://quad9.net/manifest.webmanifest

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: Switch - SWITCH, CH
CDN provider: —
IP address: 195.176.255.138
ASN: AS559 (Switch - SWITCH, CH)

DNS records

Type	Value
A	195.176.255.138
AAAA	2001:620:2020:5:9::138
MX	mx2.quad9.net mx1.quad9.net mx4.quad9.net
TXT	google-site-verification=pubFqUAodApNRC6sXcA_NNli9mak_IIlLSu6SWjyvPg slack-domain-verification=EhulLkEHEcEGaLail027zEvZEfO54vuTRtNOKfY9 v=spf1 a mx include:_spf.quad9.net include:mail.zendesk.com include:servers.mcsv.net ~all
NS	anyns.pch.net ns3.pch.net ns2.pch.net
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: quad9.net
Valid from: Jun 7, 2026
Valid to: Sep 5, 2026
Days until expiry: 46
SAN domains: quad9.net

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 8

Links

32 internal · 10 external · 0 broken

Images

19 total · 1 missing alt

Scripts / Styles

2 scripts · 1 stylesheets

JS / CSS size

2.3 KB · 31.6 KB

Page size

29.1 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Title longer than 60 characters
Missing canonical link
No structured data (JSON-LD) found
sitemap.xml not found

Careers

View careers page

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://quad9.net
Final URL: https://quad9.net
HTTP status: 200
HTTP version: HTTP/2
Response time: 869 ms
HTML size: 29.1 KB
Redirect chain: https://quad9.net

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Frequently asked questions

What technology does quad9.net use?: quad9.net is built with Nginx.
Is quad9.net secure (HTTPS)?: Yes. quad9.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 5, 2026.
Who hosts quad9.net?: quad9.net is hosted on Switch - SWITCH, CH.
What is quad9.net's SEO score?: quad9.net scored 75/100 for SEO in the latest analysis (fair).
What is quad9.net's overall website score?: quad9.net has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Is quad9.net hiring?: quad9.net has a careers page; check it directly for current openings.