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mozillamessaging.com

Thunderbird — Free Your Inbox. — Thunderbird

Last scanned Jul 27, 2026, 3:43 PM

88

Overall score

Great

Summary

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!. This website is hosted on Cloudflare. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!

United States
Hosted on Cloudflare

Top issues to fix

5 issues found · 1 high priority

  • Missing Content-Security-Policy header

    Security

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

  • Missing X-Content-Type-Options header

    Security

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

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich 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.

80

SEO

3 issue(s) found

90

Performance

1.15 s

85

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.

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!

FacebookYouTubeLinkedIn

Contact

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

Meta tags

Title
Thunderbird — Free Your Inbox. — Thunderbird
Description
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Canonical
https://www.thunderbird.net/en-US/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Thunderbird — Free Your Inbox.
og:description
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
og:type
website
og:url
https://www.thunderbird.net/en-US/

Twitter Card

twitter:card
summary
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.20.26.187
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.20.26.187
  • 172.66.166.3
AAAA
  • 2606:4700:10::ac42:a603
  • 2606:4700:10::6814:1abb
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
thunderbird.net
Valid from
Jul 21, 2026
Valid to
Oct 20, 2026
Days until expiry
84
SAN domains
thunderbird.net, *.pi.thunderbird.net, *.thunderbird.net

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 1 · H2 17 · H3 0

Links

12 internal · 34 external · 0 broken

Images

21 total · 0 missing alt

Scripts / Styles

9 scripts · 2 stylesheets

JS / CSS size

11.4 KB · 1.8 KB

Page size

268 KB

Robots.txt & Sitemap

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

SEO issues

  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

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://mozillamessaging.com
Final URL
https://www.thunderbird.net/en-US/
HTTP status
200
HTTP version
HTTP/2
Response time
1.15 s
HTML size
268 KB
Redirect chain
https://mozillamessaging.com → https://www.thunderbird.net/ → https://www.thunderbird.net/en-US/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does mozillamessaging.com use?
We did not detect any specific technologies for mozillamessaging.com in the latest scan.
Is mozillamessaging.com secure (HTTPS)?
Yes. mozillamessaging.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 20, 2026.
Who hosts mozillamessaging.com?
mozillamessaging.com is hosted on Cloudflare, behind Cloudflare CDN.
What is mozillamessaging.com's SEO score?
mozillamessaging.com scored 80/100 for SEO in the latest analysis (great).
What is mozillamessaging.com's overall website score?
mozillamessaging.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Is mozillamessaging.com hiring?
mozillamessaging.com has a careers page; check it directly for current openings.