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protonmail.com

Proton Mail: Get a free email account with privacy and encryption | Proton

Last scanned Jul 29, 2026, 9:00 PM · 16 views

92

Overall score

Excellent

Summary

Proton Mail is the world’s largest secure email service with over 100 million users. This website uses Astro. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

Top issues to fix

7 issues found

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search 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.

+1 more issue — details in the sections below.

80

SEO

4 issue(s) found

100

Performance

356 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 22, 2026

Overall
92
SEO
80
Security
90
Performance
100
Accessibility
100

Organization

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

Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

X (Twitter)InstagramFacebookLinkedInYouTubeYouTube

Meta tags

Title
Proton Mail: Get a free email account with privacy and encryption | Proton
Description
Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.
Canonical
https://proton.me/mail
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no
Robots meta
index, follow
Manifest
https://proton.me/mail/site.webmanifest

OpenGraph & Twitter Card

OpenGraph

og:title
Proton Mail: Get a free email account with privacy and encryption | Proton
og:description
Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.
og:type
website
og:url
https://proton.me/mail/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Astro

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
proton.me
Valid from
Jul 9, 2026
Valid to
Oct 7, 2026
Days until expiry
69
SAN domains
*.pr.tn, *.proton.me, *.storage.proton.me, pr.tn, proton.me

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 8 · H3 17

Links

79 internal · 27 external · 20 broken

Images

64 total · 0 missing alt

Scripts / Styles

162 scripts · 2 stylesheets

JS / CSS size

46.3 KB · 11.0 KB

Page size

298 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://protonmail.com
Final URL
https://proton.me/mail
HTTP status
200
HTTP version
HTTP/2
Response time
350 ms
HTML size
298 KB
Redirect chain
https://protonmail.com → https://proton.me/mail

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does protonmail.com use?
protonmail.com is built with Astro.
Is protonmail.com secure (HTTPS)?
Yes. protonmail.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 7, 2026.
Who hosts protonmail.com?
Hosting provider information for protonmail.com is not available yet.
What is protonmail.com's SEO score?
protonmail.com scored 80/100 for SEO in the latest analysis (great).
What is protonmail.com's overall website score?
protonmail.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
Has protonmail.com's score changed over time?
protonmail.com's overall score has declined by 3 points (from 95 to 92) since Jul 22, 2026.