Is mozilla.org safe?

Very Likely Safe

No major red flags found. This looks like a legitimate, established website.

Popular site · #93 worldwideChecked Nov 13, 2026

Trust score

Why: Main reasons: domain registered 29+ years ago; not flagged by Google Safe Browsing; popular website — ranked #93 worldwide. Minor issues: no terms of service found; large response served uncompressed.

Identity & Age100/100

Impersonation Risk100/100

Red Flags100/100

Transparency87/100

Security100/100

Email100/100

Positive highlights

Domain registered 29+ years agoLong-established domains are far less likely to be disposable scams.
Not flagged by Google Safe BrowsingNo malware, phishing, or unwanted-software match in Google's live threat database.
HTTPS is enforcedAll redirects stayed on HTTPS. Traffic is encrypted end-to-end.
Valid SSL / TLS certificate activeIssued by C=US, O=Amazon, CN=Amazon RSA 2048 M01, valid for 124 remaining days.
Popular website — ranked #93 worldwideListed in the Tranco top 1 million websites. Scam sites are almost never this popular.
Site responded with 200Final URL: https://www.mozilla.org/en-US/. Response time 402ms.
No impersonation patterns detectedDomain doesn't look like a typosquat, doesn't embed a well-known brand, and uses ASCII characters.
Not listed on URLhaus malware blocklist
Not present in PhishStats phishing feed
HSTS is setTells browsers to only use HTTPS for this domain.

Negative highlights

No terms of service foundReputable sites usually publish a terms of service.
Large response served uncompressedEnable gzip or brotli at the edge to cut transfer size dramatically.

Note: Registered via MarkMonitor Inc..

Note: 5 technologies detected. Svelte, Tailwind CSS, Google Analytics, Google Tag Manager, Cloudflare

Key facts about mozilla.org

Website: mozilla.org
Popularity: #93 worldwide (Tranco top 1M)
Domain created: Jan 24, 1998 (28.8 years old)
Domain expires: Jan 23, 2027
Registrar: MarkMonitor Inc.
Owner details: Public in WHOIS
IP address: 35.190.14.201
Hosting / CDN: Cloudflare
SSL certificate: Amazon · valid until Mar 17, 2027
Email security: SPF ✓ · DMARC ✓ (reject)
Threat blocklists: Not listed (clean)
Technology: Svelte, Tailwind CSS, Google Analytics, Google Tag Manager, Cloudflare

Summary

97/100 — trusted. Long-established domain (28.8 years old), clean threat reputation, no impersonation patterns.

No malware/phishing on feedsGood reputationHTTPS enabled

Full technical report

Domain Information

Registration timeline, age calculation, registrar details, and ICANN status.

Verified

Registrar Name: MarkMonitor Inc.
Creation Date: January 24, 1998 (28.8 years ago)
Last Updated: September 14, 2026
Registry Expiry Date: January 23, 2027
WHOIS Privacy Protection: Publicly Visible
Domain Status Codes: client delete prohibited, server delete prohibited, client transfer prohibited, server transfer prohibited, client update prohibited, server update prohibited

ICANN Status Badges

client delete prohibitedserver delete prohibitedclient transfer prohibitedserver transfer prohibitedclient update prohibitedserver update prohibited

Open in standalone WHOIS / RDAP Lookup tool →

Domain registered 29+ years ago

Long-established domains are far less likely to be disposable scams.

+15

Registered via MarkMonitor Inc.

Owner information disclosed

The domain publishes registrant contact info — a small positive transparency signal.

HTTP Headers & Security

Full HTTP response headers, HSTS, Content Security Policy (CSP), and security baselines.

Good

Security Header Baseline

Strict-Transport-SecurityMissing

Content-Security-PolicyMissing

X-Frame-Options Present

X-Content-Type-Options Present

Referrer-PolicyMissing

Permissions-PolicyMissing

Recommended Missing Headers

missing: Permissions Policy

All Response Headers (27)

age: 163
cache-control: max-age=600
cf-cache-status: DYNAMIC
cf-ray: a59ecfd44aceb86e-CMH
connection: close
content-language: en-US
content-security-policy: form-action 'self' https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org; img-src 'self' blog.mozilla.org data: https://gtm.mozilla.org images.ctfassets.net www.google-analytics.com www.googletagmanager.com www.mozilla.org; base-uri 'none'; connect-src 'self' *.analytics.google.com *.google-analytics.com *.googletagmanager.com analytics.google.com google-analytics.com googletagmanager.com gtm.mozilla.org https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org https://gtm.mozilla.org o1069899.ingest.sentry.io o1069899.sentry.io region1.google-analytics.com; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.mozilla.org; default-src 'self' *.mozilla.org; upgrade-insecure-requests; frame-src 'self' accounts.firefox.com gtm.mozilla.org https://gtm.mozilla.org js.stripe.com www.google-analytics.com www.googletagmanager.com www.youtube.com; script-src 'self' 'unsafe-eval' 'unsafe-inline' *.google-analytics.com *.googletagmanager.com google-analytics.com googletagmanager.com https://gtm.mozilla.org js.stripe.com s.ytimg.com tagmanager.google.com www.mozilla.org www.youtube.com; frame-ancestors 'none'; style-src 'self' 'unsafe-inline' www.mozilla.org; object-src 'none'; font-src 'self' www.mozilla.org
content-security-policy-report-only: form-action 'self' https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org; img-src 'self' blog.mozilla.org data: https://gtm.mozilla.org images.ctfassets.net www.google-analytics.com www.googletagmanager.com www.mozilla.org; base-uri 'none'; connect-src 'self' *.analytics.google.com *.google-analytics.com *.googletagmanager.com analytics.google.com google-analytics.com googletagmanager.com gtm.mozilla.org https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org https://gtm.mozilla.org o1069899.ingest.sentry.io o1069899.sentry.io region1.google-analytics.com; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.mozilla.org; default-src 'self' *.mozilla.org; upgrade-insecure-requests; frame-src 'self' accounts.firefox.com gtm.mozilla.org https://gtm.mozilla.org js.stripe.com www.google-analytics.com www.googletagmanager.com www.youtube.com; script-src 'self' 'unsafe-eval' 'unsafe-inline' *.google-analytics.com *.googletagmanager.com google-analytics.com googletagmanager.com https://gtm.mozilla.org js.stripe.com s.ytimg.com tagmanager.google.com www.mozilla.org www.youtube.com; frame-ancestors 'none'; style-src 'self' 'unsafe-inline' www.mozilla.org; object-src 'none'; font-src 'self' www.mozilla.org
content-type: text/html; charset=utf-8
cross-origin-opener-policy: same-origin
date: Fri, 13 Nov 2026 15:29:25 GMT
etag: W/"5644b4886ec189bf73c1898e5978644e"
expires: Wed, 11 Nov 2026 09:40:19 GMT
referrer-policy: strict-origin-when-cross-origin
server: cloudflare
strict-transport-security: max-age=31536000
transfer-encoding: chunked
vary: Accept-Encoding
via: 1.1 google, 1.1 varnish, 1.1 varnish
x-backend-server: bedrock-66977cbdf6-bbgc5.gcp-us-west1
x-cache: MISS, HIT
x-cache-hits: 0, 0
x-clacks-overhead: GNU Terry Pratchett
x-content-type-options: nosniff
x-frame-options: DENY
x-served-by: cache-cmh1290053-CMH, cache-cmh1290053-CMH, cache-cmh1290090-CMH
x-timer: S1794583765.173933,VS0,VE2

Inspect all headers in HTTP Header Checker tool →

HSTS is set

Tells browsers to only use HTTPS for this domain.

Content Security Policy is set

Restricts which scripts and resources the page can load.

X-Frame-Options is set

Prevents clickjacking by disallowing framing.

X-Content-Type-Options is set

Blocks MIME-sniffing browser attacks.

Referrer Policy is set

Controls what referrer information is sent with requests.

Missing Permissions Policy

Restricts access to powerful browser features (camera, mic, etc.).

-2

DNS Records

Encrypted DoH resolution: A, AAAA, MX mail servers, authoritative NS, and TXT verification.

Resolved

IPv4 Addresses (A): 35.190.14.201
IPv6 Addresses (AAAA): 2600:1901:0:c197::
Mail Servers (MX): aspmx.l.google.com (Priority: 1), alt1.aspmx.l.google.com (Priority: 5), alt2.aspmx.l.google.com (Priority: 5), aspmx3.googlemail.com (Priority: 10)
Authoritative Nameservers (NS): ns1-240.akam.net, ns5-65.akam.net, ns4-64.akam.net, ns7-66.akam.net
TXT Records Found: 17 TXT verification records

A Records (IPv4)

35.190.14.201

TXT Verification Records

openai-domain-verification=dv-J6NgbJamHFrHSyNqlhElIX5K

google-site-verification=S3M17z96OKfZJ2dq7mYqQDfRWsEVjy3hdxaSyB72YPc

google-site-verification=z68pON7CWSaZu_sBqDQofmDL19OVp3krGEjaDl7cSaU

google-site-verification=Brpe3hQpo9FlGIHMtK4ViKL60L0G8VM16nXopwVDoEU

google-site-verification=Lo_B34AJAe70BQVNF1Fo1zGGJudPmw9bLTnP2C8lV-s

_zojr3c56nq36tokzhnj9crit28tiqly

rz8t7zvjv5frpfbjs3y5n6g5tkw7gt2q

ZOOM_verify_lGxIzL49Id7PipUgDgTd9K

v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.mozilla.com include:_spf.google.com include:spf.fundraiseup.com ~all

zoom-domain-verification=ZOOM_verify_671ea7b9c47d4b7b8cc9441f40817e3e

bzbkzkxj2ws8gvtw6hpssfy7lv9kym88

yandex-verification

google-site-verification=E1vBHtOW-D9IlAj-pbRM-8PrOSiPDT48lrwRlW82ysw

google-site-verification=Ep3NdzNxaf8Vl48dniNneaqm7JcWUiy3GjKS0wx5zQw

anthropic-domain-verification-w5rph5=bZ2V4N0ps4oFSU6yrv4DfD6nA

google-site-verification=mU3ta-ZJga-aCNg7IlaRaGYK9sDOMagHRNGVW1FSJGE

MS=ms14343235

Run live DNS resolution in DNS Lookup tool →

2 address record(s) resolved

IPv6 (AAAA) available

Modern dual-stack setup.

4 authoritative nameservers

WHOIS & Identity Lookup

Domain ownership status, registry lifecycle, nameservers, and privacy redaction.

Found

Registrable Domain: mozilla.org
Registrar Organization: MarkMonitor Inc.
WHOIS Privacy Status: Public Registration Data
Registry Status Codes: client delete prohibited, server delete prohibited, client transfer prohibited, server transfer prohibited, client update prohibited, server update prohibited
Delegated Authoritative Nameservers: ns1-240.akam.net, ns4-64.akam.net, ns5-65.akam.net, ns7-66.akam.net
Registration Lifecycle: Registered: 1998 → Expires: 2027

Nameservers (NS)

ns1-240.akam.netns4-64.akam.netns5-65.akam.netns7-66.akam.net

Run dedicated WHOIS query for mozilla.org →

Domain registered 29+ years ago

Long-established domains are far less likely to be disposable scams.

+15

Registered via MarkMonitor Inc.

Owner information disclosed

The domain publishes registrant contact info — a small positive transparency signal.

Email Security & Deliverability

SPF record validation, DMARC policy enforcement, DKIM selectors, and MX reputation.

Protected

SPF Record: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.mozilla.com include:_spf.google.com include:spf.fundraiseup.com ~all
DMARC Policy Mode: Policy: REJECT
DMARC Raw Record: v=DMARC1; p=reject; pct=100; adkim=r; aspf=r; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@mozilla.com
DKIM Selectors Detected: google

Email Protection Summary: This domain has strong email authentication configured to prevent spammers from sending emails impersonating this brand.

Test email deliverability in Email Reputation tool →

SPF record published

DMARC published (reject)

DKIM configured (google)

Threat Intelligence & Blocklists

Multi-source malware feeds (URLhaus), phishing checks (PhishStats, Safe Browsing), and typosquats.

Clean

URLhaus Malware

Clean / Not Listed

PhishStats Feed

Clean / Not Listed

Google Safe Browsing

Clean / Verified

Root Domain Label: mozilla
Top-Level Domain (TLD): .org (Standard TLD)
Punycode Obfuscation: No (Standard ASCII)
Homoglyph / Lookalike Script: No mixed scripts
Brand Match Analysis: No recognized brand impersonation
Typosquatting Risk: Clean

No impersonation patterns detected

Domain doesn't look like a typosquat, doesn't embed a well-known brand, and uses ASCII characters.

Technology Stack & Metadata

Detected CMS, JavaScript frameworks, analytics tags, CDN providers, and page metadata.

Detected

Detected Technologies by Category

Svelte

css

Tailwind CSS

analytics

Google AnalyticsGoogle Tag Manager

cdn

Cloudflare

Page Metadata & Fingerprint

HTML Title: Mozilla - Internet for people, not profit (US)
Meta Description: We’re working to put control of the internet back in the hands of the people using it.
Document Language: en
Character Encoding: utf-8
Viewport Setting: width=device-width, initial-scale=1
Generator Software: —

Fingerprint tech stack in Technology Detector tool →

5 technologies detected

Svelte, Tailwind CSS, Google Analytics, Google Tag Manager, Cloudflare

Mobile viewport configured

Page Performance & Compression

Server response time, content payload size, Brotli/Gzip compression, and caching rules.

402ms

Items to Fix & Optimize

Text compression (Brotli/Gzip)

MUCH NEEDEDEnable on server or CDN

Modern image formats (WebP/AVIF/SVG)

OPTIONALConvert heavy images to WebP/AVIF

Protocol

HTTP/2

Binary framing, multiplexed

Compression

NONE

No compression detected

Optimization Signals (From Detectable Headers & Assets)

Image Formats

Legacy / Unchecked

Transfer

Uncompressed

Transport

HTTP/2

These are server-side signals. Actual Core Web Vitals (LCP, INP, CLS) require real-user measurement via PageSpeed Insights.

Detected Asset & Image Formats

WebPAVIFSVGJPEGPNG

HTTP Response Time: 402 ms
Payload Body Size: 112.6 KB
Compression Status: Uncompressed
Cache Directives: max-age=600

Large response served uncompressed

Enable gzip or brotli at the edge to cut transfer size dramatically.

-3

Response is cache-friendly

max-age=600

AI Content Safety & Red Flags

High-pressure language, payment gateway safety, disposable domain analysis, and deceptive tactics.

Safe

AI Content Evaluation

97/100 — trusted. Long-established domain (28.8 years old), clean threat reputation, no impersonation patterns. Main reasons: domain registered 29+ years ago; not flagged by Google Safe Browsing; popular website — ranked #93 worldwide. Minor issues: no terms of service found; large response served uncompressed.

Payment Red Flags: None (No suspicious payment requests)
High-Pressure Language: None (No artificial urgency detected)
Disposable Domain Risk: No (Established infrastructure)
Text Scanned Depth: 10,571 characters verified

No scam-correlated language found on the home page

No crypto-only / gift-card / wire-only payment demands, and no obvious urgency tactics.

Server & Hosting Infrastructure

Primary IP address, web server software, CDN edge network, and redirect hop chain.

cloudflare

Primary Web Server: cloudflare
CDN / Cloud Provider: Cloudflare
Primary IP Address: 35.190.14.201
HTTP Status Code: 200 OK
Final Landing Destination: https://www.mozilla.org/en-US/
Redirect Hop Count: 2 hops

Redirect Hop Chain

1.https://mozilla.org/ → https://www.mozilla.org/
2.https://www.mozilla.org/ → https://www.mozilla.org/en-US/

Lookup IP & ASN in IP Lookup tool →Trace redirects in URL Expander tool →

Site responded with 200

Final URL: https://www.mozilla.org/en-US/. Response time 402ms.

HTTPS is enforced

All redirects stayed on HTTPS. Traffic is encrypted end-to-end.

+10

Served through Cloudflare

Sites behind a major CDN benefit from DDoS protection and edge caching.

SSL / TLS Certificate

Active Certificate Authority, Common Name, validity period, expiration countdown, and SANs.

Secure

Certificate Authority (Issuer): C=US, O=Amazon, CN=Amazon RSA 2048 M01
Subject Common Name (CN): reachable.fuzzing.mozilla.org
Validity Period: 124 days remaining (Expires: 2027-03-17T23:59:59Z)
Subject Alternative Names (SANs): 40 domains protected
Certificates Logged (CT): 100 certs recorded

Subject Alternative Names (Sample)

reachable.fuzzing.mozilla.orgpublic.us-west-2.infosec.mozilla.orgprotocol.moz.worksprotocol.mozilla.orgbrand.mozilla.orgproduct-details.mozilla-releng.netproduct-details.mozilla.orgwirelesschallenge.mozilla.orgbnzry48543.lithium.comconnect.mozilla.orgadtransparency-prod.prod.mozaws.netadtransparency.mozilla.orgmaven-default.prod.mozaws.netmaven-nightly.prod.mozaws.netmaven-snapshots.prod.mozaws.netmaven.mozilla.orgnightly.maven.mozilla.orgsnapshots.maven.mozilla.orgsurveillance.mozilla.orghttp-observatory.security.mozilla.orgmozilla.orgwww.mozilla.orgwww.mozorg.moz.worksgames.mozilla.orginfosec.mozilla.orgriskheatmap.security.mozilla.orgquality.mozilla.orgnetwork.mozilla.orgaddons.mozilla.orgblocklist.addons.mozilla.orgreviewers.addons.mozilla.orgservices.addons.mozilla.orgversioncheck-bg.addons.mozilla.orgversioncheck.addons.mozilla.orgstart.mozilla.orgprod.observatory.mdn.prod.webservices.mozgcp.netsmtp.mozilla.orgbugherder.mozilla.orgblog.rally.mozilla.orgpasswordreset.mozilla.org+20 more

Check certificate history in SSL Checker tool →

Valid SSL / TLS certificate active

Issued by C=US, O=Amazon, CN=Amazon RSA 2048 M01, valid for 124 remaining days.

+10

Content & Transparency Policies

Linked privacy policy, terms of service, about page, social channels, and published contacts.

Verified

Key Legal & Transparency Pages

privacy PageFound

terms PageNot linked

contact PageFound

about PageFound

refund PageNot linked

shipping PageNot linked

cookies PageNot linked

Verified Social Channels

instagram linkedin tiktok

Published Contact Emails: c3ab8514873549d5b3785ebc7fb83c80@o1069899.ingest.sentry.io

Published Phone Numbers: 8514873549, 262134952380, 989804926, 143075360, 7.24 1.36 5.89 5.89, 8.3 15.7 16 8 8.3.3

No terms of service found

Reputable sites usually publish a terms of service.

-4

Contact page linked from home page

About page linked from home page

No refund/return policy found

Reputable sites usually publish a refund/return policy.

-3

No cookie policy found

Reputable sites usually publish a cookie policy.

-2

3 social profile(s) linked

instagram, linkedin, tiktok

Contact email published

Phone number published

Robots.txt & Sitemap Discoverability

Search engine crawler directives, indexability, and declared XML sitemaps.

Present

Robots.txt Directives: Present & Configured
Sitemaps Declared: None in robots.txt
Disallow Rules Count: 2 rules

View Raw robots.txt

user-agent: *
disallow: /*/newsletter/existing/
disallow: /*/etc/

robots.txt published

Export & Share Intelligence

Download the complete official PDF verification report (all sections and technical signals expanded), or export raw JSON telemetry.

Scan Engine Performance

Automated multi-signal inspection pipeline

v5.1.0 Engine

Signals Analyzed

This scan

Sources Checked

Live security feeds

Scan Duration

6.36s

Full live scan

Last Scan

11/13/2026

Live timestamp

Overall Risk

Low Risk

User reviews of mozilla.org

No reviews yet. Be the first to share your experience.