What technology does mozilla.org use?

We did not detect any specific technologies for mozilla.org in the latest scan.

Is mozilla.org secure (HTTPS)?

Yes. mozilla.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 21, 2026.

Who hosts mozilla.org?

Hosting provider information for mozilla.org is not available yet.

What is mozilla.org's SEO score?

mozilla.org scored 75/100 for SEO in the latest analysis (fair).

What is mozilla.org's overall website score?

mozilla.org has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.

Has mozilla.org's score changed over time?

mozilla.org's overall score has declined by 3 points (from 96 to 93) since Jul 15, 2026.

mozilla.org

Internet for people, not profit — Mozilla Global

Last scanned Jul 29, 2026, 11:00 AM · 17 views

Overall score

Excellent

Summary

Mozilla is the not-for-profit behind the lightning fast Firefox browser. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing canonical link.

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Top issues to fix

5 issues found

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.
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

4 issue(s) found

100

Performance

238 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 15, 2026

Overall: 93
SEO: 75
Security: 100
Performance: 100
Accessibility: 100

Organization

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

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Instagram LinkedIn Instagram YouTube

Contact

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

Email: c3ab8514873549d5b3785ebc7fb83c80@o1069899.ingest.sentry.io

Meta tags

Title: Internet for people, not profit — Mozilla Global
Description: Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
Canonical
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: Fastly
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: Let's Encrypt
Subject: www.mozilla.org
Valid from: Jun 23, 2026
Valid to: Sep 21, 2026
Days until expiry: 53
SAN domains: www.mozilla.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 26 · H3 0

Links

95 internal · 34 external · 20 broken

Images

12 total · 0 missing alt

Scripts / Styles

9 scripts · 3 stylesheets

JS / CSS size

0 B · 0 B

Page size

47.3 KB

Robots.txt & Sitemap

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

SEO issues

Missing canonical link
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://mozilla.org
Final URL: https://www.mozilla.org/
HTTP status: 200
HTTP version: HTTP/2
Response time: 238 ms
HTML size: 47.3 KB
Redirect chain: https://mozilla.org → https://www.mozilla.org/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does mozilla.org use?: We did not detect any specific technologies for mozilla.org in the latest scan.
Is mozilla.org secure (HTTPS)?: Yes. mozilla.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 21, 2026.
Who hosts mozilla.org?: Hosting provider information for mozilla.org is not available yet.
What is mozilla.org's SEO score?: mozilla.org scored 75/100 for SEO in the latest analysis (fair).
What is mozilla.org's overall website score?: mozilla.org has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.
Has mozilla.org's score changed over time?: mozilla.org's overall score has declined by 3 points (from 96 to 93) since Jul 15, 2026.