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www.proton.com Open in urlscan Pro
52.139.251.148  Public Scan

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Submitted URL: http://proton.com/404.html
Effective URL: https://www.proton.com/404.html
Submission: On May 01 via manual from GY — Scanned from SG
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 1 countries across 3 domains to perform 15 HTTP transactions. The main IP is 52.139.251.148, located in Singapore, Singapore and belongs to MICROSOFT-CORP-MSN-AS-BLOCK, US. The main domain is www.proton.com. The Cisco Umbrella rank of the primary domain is 660422.
TLS certificate: Issued by DigiCert Global G2 TLS RSA SHA256 202... on August 31st 2023. Valid for: a year.
This is the only time www.proton.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 14 52.139.251.148 8075 (MICROSOFT...)
1 2404:6800:400... 15169 (GOOGLE)
1 2404:6800:400... 15169 (GOOGLE)
15 3
Apex Domain
Subdomains		 Transfer
14 proton.com
proton.com — Cisco Umbrella Rank: 563301
www.proton.com — Cisco Umbrella Rank: 660422
1008 KB
1 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 31
52 KB
1 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 33
2 KB
15 3
Domain Requested by
13 www.proton.com www.proton.com
1 www.google-analytics.com www.proton.com
1 fonts.googleapis.com www.proton.com
1 proton.com 1 redirects
15 4

This site contains no links.

Subject Issuer Validity Valid
*.proton.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1		 2023-08-31 -
2024-08-31		 a year crt.sh
upload.video.google.com
GTS CA 1C3		 2024-04-08 -
2024-07-01		 3 months crt.sh
*.google-analytics.com
GTS CA 1C3		 2024-04-08 -
2024-07-01		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://www.proton.com/404.html
Frame ID: B85085CE31ED7A2FED0689D9C316266E
Requests: 15 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Proton 2.0

Page URL History Show full URLs

  1. http://proton.com/404.html HTTP 307
    https://proton.com/404.html HTTP 303
    https://www.proton.com/404.html Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+(?:([\d.]+)/)?(?:css/)?font-awesome(?:\.min)?\.css
  • <link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
  • (?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js
Overall confidence: 100%
Detected patterns
  • <link [^>]+(?:/([\d.]+)/)?slick-theme\.css

Page Statistics

15
Requests

100 %
HTTPS

67 %
IPv6

3
Domains

4
Subdomains

3
IPs

1
Countries

1061 kB
Transfer

1100 kB
Size

3
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. http://proton.com/404.html HTTP 307
    https://proton.com/404.html HTTP 303
    https://www.proton.com/404.html Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

15 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request 404.html
www.proton.com/
Redirect Chain
  • http://proton.com/404.html
  • https://proton.com/404.html
  • https://www.proton.com/404.html
6 KB
7 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
e6c5cd38a935a700c28df693460623004770dee3d95eee21ef7987f866920f31
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Accept-Ranges
bytes
Content-Length
5829
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Content-Type
text/html
Date
Wed, 01 May 2024 23:18:45 GMT
ETag
"a156eedf51ddd31:0"
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Last-Modified
Thu, 26 Apr 2018 11:29:44 GMT
Permissions-Policy
fullscreen=()
Referrer-Policy
no-referrer
Server
NA
Strict-Transport-Security
max-age=31536000; includeSubDomains;
X-Content-Type-Options
nosniff
X-Frame-Options
DENY
X-Permitted-Cross-Domain-Policies
none
X-Xss-Protection
1; mode=block

Redirect headers

Content-Length
154
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * data: blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';
Content-Type
text/html; charset=UTF-8
Date
Wed, 01 May 2024 23:18:45 GMT
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Location
https://www.proton.com/404.html
Permissions-Policy
fullscreen=()
Referrer-Policy
no-referrer
Server
NA
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Content-Type-Options
nosniff
X-Frame-Options
DENY
X-Permitted-Cross-Domain-Policies
none
X-Xss-Protection
1; mode=block
font-awesome.min.css
www.proton.com/assets/libs/css/font-awesome/css/ 		30 KB
31 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/libs/css/font-awesome/css/font-awesome.min.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
820e169ce24824066d9973fd4b6561aae9dcd6dbef6435da905d5a1d6482997c
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
31004
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Sat, 28 Apr 2018 00:50:10 GMT
Server
NA
ETag
"18f537dc8aded31:0"
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
slick.css
www.proton.com/assets/libs/css/slick/ 		2 KB
3 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/libs/css/slick/slick.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
f0b722c48c52082cd77261574e22a5251fe37ea4b291b1441134145bab9b2063
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
1895
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Sat, 28 Apr 2018 00:50:10 GMT
Server
NA
ETag
"9eac48dc8aded31:0"
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
slick-theme.css
www.proton.com/assets/libs/css/slick/ 		3 KB
4 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/libs/css/slick/slick-theme.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
44f089df497a7bcbce5dab74a9d6d8f4eb15af1b6e9fc38d5d21e23e03e62638
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
3348
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Sat, 28 Apr 2018 00:50:10 GMT
Server
NA
ETag
"1384bdc8aded31:0"
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
jquery-ui.min.css
www.proton.com/assets/libs/css/jquery-ui/ 		31 KB
9 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/libs/css/jquery-ui/jquery-ui.min.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
ca4df2bf400a42d8752e115f03366a90b2b4ed06b2da9ef429d41fda5f15705e
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Permitted-Cross-Domain-Policies
none
Date
Wed, 01 May 2024 23:18:45 GMT
Content-Length
7878
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Sat, 28 Apr 2018 00:50:10 GMT
Server
NA
ETag
"0cde5db8aded31:0"
Vary
Accept-Encoding
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
selectize.css
www.proton.com/assets/libs/css/selectize/ 		9 KB
10 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/libs/css/selectize/selectize.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
4061893f9fb4ea5cf6ae901499306aa826cd1bbe2066b322a0278b0ed933b63f
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
9303
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Sat, 28 Apr 2018 00:50:10 GMT
Server
NA
ETag
"534346dc8aded31:0"
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
main.css
www.proton.com/assets/css/ 		35 KB
7 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/css/main.css
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
5a549018d3a8c93c35d8a439c0133deff30e9fb5d9b05d412ef6ac0bf0e63b46
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Permitted-Cross-Domain-Policies
none
Date
Wed, 01 May 2024 23:18:45 GMT
Content-Length
6347
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Tue, 30 Apr 2024 14:10:43 GMT
Server
NA
ETag
"80731b3089bda1:0"
Vary
Accept-Encoding
X-Frame-Options
DENY
Content-Type
text/css
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
Proton_Mobile_404-Error.jpg
www.proton.com/assets/img/banners/ 		792 KB
793 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.proton.com/assets/img/banners/Proton_Mobile_404-Error.jpg
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
3d154a2f01232cd7b8174a0feaf6553efa5e56eb8300f60d279df19d2003ab1e
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
811237
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Fri, 20 Apr 2018 12:28:04 GMT
Server
NA
ETag
"5eb0e67a3d8d31:0"
X-Frame-Options
DENY
Content-Type
image/jpeg
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
css2
fonts.googleapis.com/ 		2 KB
2 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css2?family=Kanit:wght@100;300;400;500;600;700;800;900&display=swap
Requested by
Host: www.proton.com
URL: https://www.proton.com/assets/css/main.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2404:6800:4003:c01::5f Singapore, Singapore, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
d973ad4e94619d9d95885afb7cc35ad6843df80d36266ee719893151c691acb4
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

date
Wed, 01 May 2024 23:18:45 GMT
x-content-type-options
nosniff
server
ESF
cross-origin-opener-policy
same-origin-allow-popups
x-frame-options
SAMEORIGIN
vary
Accept-Encoding
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400
cross-origin-resource-policy
cross-origin
accept-ranges
none
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
0
expires
Wed, 01 May 2024 23:18:45 GMT
analytics.js
www.google-analytics.com/ 		52 KB
52 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: www.proton.com
URL: https://www.proton.com/404.html
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2404:6800:4003:c1a::64 Singapore, Singapore, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
de36e50194320a7d3ef1ace9bd34a875a8bd458b253c061979dd628e9bf49afd
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
date
Wed, 01 May 2024 21:36:29 GMT
x-content-type-options
nosniff
last-modified
Tue, 12 Dec 2023 18:09:08 GMT
server
Golfe2
age
6137
vary
Accept-Encoding
content-type
text/javascript
cache-control
public, max-age=7200
cross-origin-resource-policy
cross-origin
accept-ranges
none
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires
Wed, 01 May 2024 23:36:29 GMT
MyriadPro-Regular.ttf
www.proton.com/assets/font/ 		113 KB
114 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/font/MyriadPro-Regular.ttf
Requested by
Host: www.proton.com
URL: https://www.proton.com/assets/css/main.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
bc2ea61b87971c3bd49260ee9b112b418999a07da71c8de4579dbfaebaf5e7fb
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Referer
Origin
https://www.proton.com
Accept-Language
zh-SG,zh;q=0.9;q=0.9
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
116116
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Mon, 28 Mar 2022 09:43:22 GMT
Server
NA
ETag
"c085d6438842d81:0"
X-Frame-Options
DENY
Content-Type
application/octet-stream
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes
favicon-32x32.png
www.proton.com/assets/img/favicon/ 		1 KB
2 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/img/favicon/favicon-32x32.png
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
dc1d54dab6ec8c00f70137927504e4f222c8395f10760b6beecfcfa94e08249f
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer
Server
NA
X-Permitted-Cross-Domain-Policies
none
Date
Wed, 01 May 2024 23:18:45 GMT
X-Frame-Options
DENY
Content-Type
text/html
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Content-Length
1245
X-Xss-Protection
1; mode=block
favicon-16x16.png
www.proton.com/assets/img/favicon/ 		1 KB
2 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/img/favicon/favicon-16x16.png
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
dc1d54dab6ec8c00f70137927504e4f222c8395f10760b6beecfcfa94e08249f
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer
Server
NA
X-Permitted-Cross-Domain-Policies
none
Date
Wed, 01 May 2024 23:18:45 GMT
X-Frame-Options
DENY
Content-Type
text/html
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Content-Length
1245
X-Xss-Protection
1; mode=block
favicon-96x96.png
www.proton.com/assets/img/favicon/ 		1 KB
2 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/img/favicon/favicon-96x96.png
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
dc1d54dab6ec8c00f70137927504e4f222c8395f10760b6beecfcfa94e08249f
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer
Server
NA
X-Permitted-Cross-Domain-Policies
none
Date
Wed, 01 May 2024 23:18:45 GMT
X-Frame-Options
DENY
Content-Type
text/html
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Content-Length
1245
X-Xss-Protection
1; mode=block
favicon.ico
www.proton.com/assets/img/favicon/ 		21 KB
22 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://www.proton.com/assets/img/favicon/favicon.ico
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_CBC
Server
52.139.251.148 Singapore, Singapore, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software
NA /
Resource Hash
9b27487226d5d1be92a3ca5a37648331e36886f9eebb4fd0402ca35ce7479850
Security Headers
Name Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)

Response headers

Strict-Transport-Security
max-age=31536000; includeSubDomains;
Content-Security-Policy
default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
X-Content-Type-Options
nosniff
Date
Wed, 01 May 2024 23:18:45 GMT
X-Permitted-Cross-Domain-Policies
none
Content-Length
21107
X-Xss-Protection
1; mode=block
Referrer-Policy
no-referrer
Last-Modified
Mon, 23 Sep 2019 12:03:14 GMT
Server
NA
ETag
"2e95d3e0672d51:0"
X-Frame-Options
DENY
Content-Type
image/x-icon
Feature-Policy
accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
Permissions-Policy
fullscreen=()
Accept-Ranges
bytes

Verdicts & Comments Add Verdict or Comment

6 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

string| GoogleAnalyticsObject function| ga object| google_tag_data object| gaplugins object| gaGlobal object| gaData

3 Cookies

Domain/Path Name / Value
www.proton.com/ Name: site
Value: protonmain
.proton.com/ Name: _ga
Value: GA1.2.132162427.1714605526
.proton.com/ Name: _gid
Value: GA1.2.1499173809.1714605526

3 Console Messages

Source Level URL
Text
network error URL: https://www.proton.com/assets/img/favicon/favicon-32x32.png
Message:
Failed to load resource: the server responded with a status of 404 (Not Found)
network error URL: https://www.proton.com/assets/img/favicon/favicon-16x16.png
Message:
Failed to load resource: the server responded with a status of 404 (Not Found)
network error URL: https://www.proton.com/assets/img/favicon/favicon-96x96.png
Message:
Failed to load resource: the server responded with a status of 404 (Not Found)

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Content-Security-Policy default-src * data: blob: filesystem: about: ws: wss: 'unsafe-inline' 'unsafe-eval' ; script-src * blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob: 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src * data: blob: ; style-src * data: blob: 'unsafe-inline'; font-src * data: blob: 'unsafe-inline';object-src 'none';
Strict-Transport-Security max-age=31536000; includeSubDomains;
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block