What technology does thunderbird.net use?

We did not detect any specific technologies for thunderbird.net in the latest scan.

Is thunderbird.net secure (HTTPS)?

Yes. thunderbird.net uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 20, 2026.

Who hosts thunderbird.net?

Hosting provider information for thunderbird.net is not available yet.

What is thunderbird.net's SEO score?

thunderbird.net scored 80/100 for SEO in the latest analysis (great).

What is thunderbird.net's overall website score?

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

Has thunderbird.net's score changed over time?

thunderbird.net's overall score has improved by 3 points (from 87 to 90) since Jul 21, 2026.

thunderbird.net

Thunderbird — Free Your Inbox. — Thunderbird

Last scanned Jul 29, 2026, 4:00 PM · 8 views

Overall score

Excellent

Summary

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). 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!

Top issues to fix

6 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.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

3 issue(s) found

100

Performance

531 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+3 overall since Jul 21, 2026

Overall: 90
SEO: 80
Security: 85
Performance: 100
Accessibility: 100

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!

Facebook YouTube LinkedIn

Contact

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

Email: thunderbird@mastodon.online

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

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

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: thunderbird.net
Valid from: Jul 21, 2026
Valid to: Oct 20, 2026
Days until expiry: 82
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 · 20 broken

Images

21 total · 0 missing alt

Scripts / Styles

9 scripts · 2 stylesheets

JS / CSS size

11.4 KB · 1.8 KB

Page size

269 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

Scan details

Requested URL: https://thunderbird.net
Final URL: https://www.thunderbird.net/en-US/
HTTP status: 200
HTTP version: HTTP/2
Response time: 526 ms
HTML size: 269 KB
Redirect chain: https://thunderbird.net → https://www.thunderbird.net/ → https://www.thunderbird.net/en-US/

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Frequently asked questions

What technology does thunderbird.net use?: We did not detect any specific technologies for thunderbird.net in the latest scan.
Is thunderbird.net secure (HTTPS)?: Yes. thunderbird.net uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 20, 2026.
Who hosts thunderbird.net?: Hosting provider information for thunderbird.net is not available yet.
What is thunderbird.net's SEO score?: thunderbird.net scored 80/100 for SEO in the latest analysis (great).
What is thunderbird.net's overall website score?: thunderbird.net has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has thunderbird.net's score changed over time?: thunderbird.net's overall score has improved by 3 points (from 87 to 90) since Jul 21, 2026.