mozilla.com

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mozilla.com is ranked #462 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), down 145 places in four weeks. The domain was registered on Oct 18, 1994, 31 years, 11 months ago, through MarkMonitor Inc., and is paid up until Oct 17, 2027. It is served through Fastly.

Global rank

#462

▼ 62 this week

Domain age

31 years

since Oct 18, 1994

Technologies

detected on the homepage

SEO score

98/100

homepage checks

Popularity rank

#462 of the top 1 million sites in the Tranco research ranking, which averages several traffic and DNS sources over 30 days. Best rank in the period shown: #277.

Weekly Tranco rank (lower is more popular).

See where mozilla.com sits in the top 10,000

Domain registration

Registered: Oct 18, 1994 (31 years, 11 months ago)
Expires: Oct 17, 2027
Registrar: MarkMonitor Inc.
Name servers: ns1-240.akam.net, ns4-64.akam.net, ns5-65.akam.net, ns7-66.akam.net
DNSSEC: Not signed

From the registry's public RDAP record, checked Oct 1, 2026.

Technology stack

CDN

Fastly

Detected from the homepage HTML and response headers on Oct 14, 2026. Tools loaded only after scripts run (or after consent banners) may be missing.

Homepage SEO check

Checked from the HTML our scanner received on Oct 14, 2026. Content added later by JavaScript isn't counted.

98/100

https://www.firefox.com/en-US/

Firefox: The fast, private browser that keeps you safe — Firefox.com

The independent browser that has your back. Firefox blocks trackers, has a free built-in VPN, puts you in control of AI, and never sells your personal data.

22 passed · 1 warnings · 0 failed

Content

!Title68 characters — aim for 15–65
✓Meta description156 characters
✓H1 headingExactly one H1
✓Subheadings24 H2 headings
✓Image alt textAll 49 images have alt text
✓Content lengthAbout 1,409 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://www.firefox.com/en-US/
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen-US
ihreflang20 language alternates
✓Structured dataOrganization, Brand, WebSite, WebPage, SoftwareApplication

Social sharing

✓Open GraphTitle, description and image set
✓Twitter / X cardsummary_large_image

Technical

✓HTTPSServed over HTTPS
✓Mobile viewportFound
✓FaviconFound
✓Character encodingutf-8

Security headers

✓Strict-Transport-SecuritySet
✓Content-Security-PolicySet
✓Clickjacking protectionSet
✓X-Content-Type-OptionsSet
✓Referrer-PolicySet

Server response

Final URL: https://www.firefox.com/en-US/
HTTP status: 200
Server: granian
Response time: 2.15 s (first byte 2.15 s, from our scanner in a US data centre)
HTML size: 139 KB
Compression: br

Sites ranked near mozilla.com

Rank	Website	Registered	Built with
#457	pixabay.com	2010	Cloudflare
#458	spectrum.com	1994	—
#459	branch.io	2011	WordPress, Cloudflare, Google Tag Manager
#460	yahoo.co.jp	—	Google Tag Manager
#461	arxiv.org	1998	Fastly
#463	ampproject.org	2015	Netlify
#464	grammarly.com	2009	Next.js, React, Amazon CloudFront
#465	myqcloud.com	2013	—
#466	speedtest.net	1999	Cloudflare, Google Tag Manager, Material UI
#467	eye4.cn	—	—

Questions about mozilla.com

How popular is mozilla.com?

mozilla.com is #462 worldwide in the Tranco list published Oct 13, 2026.

How old is mozilla.com?

mozilla.com was registered on Oct 18, 1994, which makes the domain 31 years, 11 months old.

What is mozilla.com built with?

We detected Fastly on its homepage.

Who is the registrar of mozilla.com?

MarkMonitor Inc., according to the registry's RDAP record.