Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.70.42.12 |
| Compression | gzip |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 185.70.42.12
Compression gzip
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://protonmail.com:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://proton.me/mail | 200 | HTTP/2 200 |
#1 URL https://protonmail.com:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://proton.me/mail
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 2.8 ms |
| TCP Connect | 37.9 ms |
| TLS Handshake | 43 ms |
| Time To First Byte (TTFB) | 136.2 ms |
| Content Download | 57.5 ms |
| Total Response Time | 193.7 ms |
DNS Lookup 2.8 ms
TCP Connect 37.9 ms
TLS Handshake 43 ms
Time To First Byte (TTFB) 136.2 ms
Content Download 57.5 ms
Total Response Time 193.7 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubDomains; preload |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin-when-cross-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubDomains; preload
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin-when-cross-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Proton Mail: Get a free email account with privacy and encryption | Proton |
| Meta 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 |
| Robots Meta | index, follow |
| Open Graph Title | Proton Mail: Get a free email account with privacy and encryption | Proton |
| Open Graph 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. |
| Open Graph Image | https://proton.me/images/social/proton-mail-og.png |
| Twitter Card | summary_large_image |
| Twitter Title | Proton Mail: Get a free email account with privacy and encryption | Proton |
| Twitter 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. |
| Twitter Image | https://proton.me/images/social/proton-mail-og.png |
Title Proton Mail: Get a free email account with privacy and encryption | Proton Meta 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 Robots Meta index, follow Open Graph Title Proton Mail: Get a free email account with privacy and encryption | Proton Open Graph 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. Open Graph Image https://proton.me/images/social/proton-mail-og.png Twitter Card summary_large_image Twitter Title Proton Mail: Get a free email account with privacy and encryption | Proton Twitter 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. Twitter Image https://proton.me/images/social/proton-mail-og.png Detected Technologies
| Technology | React Google Analytics |
Technology React Google Analytics
HTTP Headers
| Accept-ranges
| bytes |
| Cache-control
| no-store, no-cache, must-revalidate, proxy-revalidate |
| Content-encoding
| gzip |
| Content-length
| 47495 |
| Content-type
| text/html; charset=utf-8 |
| Date
| Wed, 26 Aug 2026 08:36:09 GMT |
| Etag
| "55d96-659c86432ec9d-gzip" |
| Expires
| 0 |
| Last-modified
| Mon, 24 Aug 2026 10:24:29 GMT |
| Pragma
| no-cache |
| Set-cookie
| Features=mail2EasySwitch11292:A; SameSite=lax; Secure; Max-Age=7776000000; Path=/ |
| Vary
| Accept-Encoding |
| X-ab-variant
| A |
| Content-security-policy
| default-src 'self'; media-src https://static.zdassets.com https://res.cloudinary.com https://pmecdn.protonweb.com; connect-src 'self' wss: https://protonmail.zendesk.com https://ekr.zdassets.com blob: https://account.proton.me https://reports.proton.me https://telemetry.proton.me https://*.algolia.net https://*.algolianet.com https://go.getproton.me https://noembed.com https://boards-api.greenhouse.io https://proton.me https://*.paypal.com https://*.paypalobjects.com https://growth.proton.me ; script-src 'self' blob: 'unsafe-eval' 'unsafe-inline' https://static.zdassets.com https://pmecdn.protonweb.com https://www.youtube.com https://platform.twitter.com https://*.paypal.com https://*.paypalobjects.com; style-src 'self' 'unsafe-inline' https://pmecdn.protonweb.com https://*.paypal.com https://*.paypalobjects.com; font-src 'self' https://pmecdn.protonweb.com; img-src 'self' data: blob: https:; frame-src 'self' data: blob: https://www.youtube-nocookie.com https://platform.twitter.com https://*.paypal.com https://*.paypalobjects.com; object-src 'self' data: blob:; child-src 'self' data: blob: https://*.paypal.com https://*.paypalobjects.com; report-uri https://reports.proton.me/reports/csp; frame-ancestors 'self' https://*.proton.me; |
| Strict-transport-security
| max-age=31536000; includeSubDomains; preload |
| Public-key-pins-report-only
| pin-sha256="CT56BhOTmj5ZIPgb/xD5mH8rY3BLo/MlhP7oPyJUEDo="; pin-sha256="35Dx28/uzN3LeltkCBQ8RHK0tlNSa2kCpCRGNp34Gxc="; report-uri="https://reports.proton.me/reports/tls" |
| X-content-type-options
| nosniff |
| X-xss-protection
| 0 |
| Referrer-policy
| strict-origin-when-cross-origin |
| X-permitted-cross-domain-policies
| none |
Meta Tags
| Viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| Color-scheme | light |
| Robots | index, follow |
| 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. |
| Msapplication-TileColor | #6d4aff |
| Msapplication-config | /favicons/browserconfig.xml |
| Theme-color | #ffffff |
| Ab-test:mail2EasySwitch11292 | A |
Accept-ranges bytes
Cache-control no-store, no-cache, must-revalidate, proxy-revalidate
Content-encoding gzip
Content-length 47495
Content-type text/html; charset=utf-8
Date Wed, 26 Aug 2026 08:36:09 GMT
Etag "55d96-659c86432ec9d-gzip"
Expires 0
Last-modified Mon, 24 Aug 2026 10:24:29 GMT
Pragma no-cache
Set-cookie Features=mail2EasySwitch11292:A; SameSite=lax; Secure; Max-Age=7776000000; Path=/
Vary Accept-Encoding
X-ab-variant A
Content-security-policy default-src 'self'; media-src https://static.zdassets.com https://res.cloudinary.com https://pmecdn.protonweb.com; connect-src 'self' wss: https://protonmail.zendesk.com https://ekr.zdassets.com blob: https://account.proton.me https://reports.proton.me https://telemetry.proton.me https://*.algolia.net https://*.algolianet.com https://go.getproton.me https://noembed.com https://boards-api.greenhouse.io https://proton.me https://*.paypal.com https://*.paypalobjects.com https://growth.proton.me ; script-src 'self' blob: 'unsafe-eval' 'unsafe-inline' https://static.zdassets.com https://pmecdn.protonweb.com https://www.youtube.com https://platform.twitter.com https://*.paypal.com https://*.paypalobjects.com; style-src 'self' 'unsafe-inline' https://pmecdn.protonweb.com https://*.paypal.com https://*.paypalobjects.com; font-src 'self' https://pmecdn.protonweb.com; img-src 'self' data: blob: https:; frame-src 'self' data: blob: https://www.youtube-nocookie.com https://platform.twitter.com https://*.paypal.com https://*.paypalobjects.com; object-src 'self' data: blob:; child-src 'self' data: blob: https://*.paypal.com https://*.paypalobjects.com; report-uri https://reports.proton.me/reports/csp; frame-ancestors 'self' https://*.proton.me;
Strict-transport-security max-age=31536000; includeSubDomains; preload
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X-content-type-options nosniff
X-xss-protection 0
Referrer-policy strict-origin-when-cross-origin
X-permitted-cross-domain-policies none
