What technology does mozilla.com use?

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

Is mozilla.com secure (HTTPS)?

Yes. mozilla.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 6, 2026.

Who hosts mozilla.com?

mozilla.com is hosted on Fastly, behind Fastly CDN.

What is mozilla.com's SEO score?

mozilla.com scored 85/100 for SEO in the latest analysis (great).

What is mozilla.com's overall website score?

mozilla.com has an overall SiteGraph score of 96/100, combining SEO, performance, security, and accessibility.

mozilla.com

Get Firefox for desktop and mobile — Firefox.com

Last scanned Jul 14, 2026, 1:28 PM

Overall score

Excellent

Summary

This website is hosted on Fastly. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing canonical link.

SEO

2 issue(s) found

100

Performance

252 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Organization

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

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Meta tags

Title: Get Firefox for desktop and mobile — Firefox.com
Description: Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy.
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: Fastly
CDN provider: Fastly
IP address: 151.101.3.19
ASN: AS54113 (FASTLY - Fastly, Inc., US)

DNS records

Type	Value
A	151.101.3.19 151.101.67.19 151.101.195.19 151.101.131.19
AAAA	2a04:4e42:400::787 2a04:4e42::787 2a04:4e42:200::787 2a04:4e42:600::787
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: www.firefox.com
Valid from: Jun 8, 2026
Valid to: Sep 6, 2026
Days until expiry: 53
SAN domains: www.firefox.com, www.prod.springfield.moz.works

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 8 · H3 6

Links

105 internal · 26 external · 0 broken

Images

3 total · 0 missing alt

Scripts / Styles

10 scripts · 2 stylesheets

JS / CSS size

183 KB · 96.6 KB

Page size

45.6 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

Missing canonical link
No structured data (JSON-LD) found

Scan details

Requested URL: https://mozilla.com
Final URL: https://www.firefox.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 252 ms
HTML size: 45.6 KB
Redirect chain: https://mozilla.com → https://www.mozilla.org/firefox → https://www.firefox.com/

Frequently asked questions

What technology does mozilla.com use?: We did not detect any specific technologies for mozilla.com in the latest scan.
Is mozilla.com secure (HTTPS)?: Yes. mozilla.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 6, 2026.
Who hosts mozilla.com?: mozilla.com is hosted on Fastly, behind Fastly CDN.
What is mozilla.com's SEO score?: mozilla.com scored 85/100 for SEO in the latest analysis (great).
What is mozilla.com's overall website score?: mozilla.com has an overall SiteGraph score of 96/100, combining SEO, performance, security, and accessibility.