Submitted URL: https://expension.ch/
Effective URL: https://expension.ch/index.php
Submission: On April 14 via api from CH — Scanned from CH

Summary

This website contacted 1 IPs in 1 countries across 1 domains to perform 14 HTTP transactions. The main IP is 62.220.131.65, located in and belongs to SAITIS-NETWORK, CH. The main domain is expension.ch.
TLS certificate: Issued by R3 on March 3rd 2024. Valid for: 3 months.
This is the only time expension.ch was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 15 62.220.131.65 6893 (SAITIS-NE...)
14 1
Apex Domain
Subdomains
Transfer
15 expension.ch
expension.ch
40 KB
14 1
Domain Requested by
15 expension.ch 1 redirects expension.ch
14 1

This site contains no links.

Subject Issuer Validity Valid
www.expension.com
R3
2024-03-03 -
2024-06-01
3 months crt.sh

This page contains 1 frames:

Primary Page: https://expension.ch/index.php
Frame ID: 3255D47AC81D35826F503BD0F2380363
Requests: 14 HTTP requests in this frame

Screenshot

Page Title

Au service des institutions de prévoyance - Expension

Page URL History Show full URLs

  1. https://expension.ch/ HTTP 302
    https://expension.ch/index.php Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • \.php(?:$|\?)

Page Statistics

14
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

40 kB
Transfer

45 kB
Size

1
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. https://expension.ch/ HTTP 302
    https://expension.ch/index.php Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

14 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request index.php
expension.ch/
Redirect Chain
  • https://expension.ch/
  • https://expension.ch/index.php
7 KB
3 KB
Document
General
Full URL
https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
262a633daab0f2892b66bbc9bfd0c7cc5d922f12ad70983c1a1708ca385472b5
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Accept-Language
de-CH,de;q=0.9;q=0.9
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
referer
https://www.google.com/
sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

Cache-Control
no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection
Keep-Alive
Content-Encoding
gzip
Content-Length
2818
Content-Type
text/html; charset=iso-8859-1
Date
Sun, 14 Apr 2024 10:19:35 GMT
Expires
Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive
timeout=5, max=99
Pragma
no-cache
Server
Apache
Vary
Accept-Encoding
X-Content-Type-Options
nosniff

Redirect headers

Connection
Keep-Alive
Content-Length
214
Content-Type
text/html; charset=iso-8859-1
Date
Sun, 14 Apr 2024 10:19:35 GMT
Keep-Alive
timeout=5, max=100
Location
https://expension.ch/index.php
Server
Apache
X-Content-Type-Options
nosniff
site_v1.9.css
expension.ch/css/
5 KB
2 KB
Stylesheet
General
Full URL
https://expension.ch/css/site_v1.9.css
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
e65842e29598ab1f9f4d361bd6141169d22223bd0f3f901130a6a47d06aacf21
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Mon, 02 Apr 2012 21:00:00 GMT
Server
Apache
ETag
"11eca-1234-792f7400-gzip"
Vary
Accept-Encoding
Content-Type
text/css
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=98
Content-Length
1333
color_v1.7.css
expension.ch/css/default/
3 KB
1 KB
Stylesheet
General
Full URL
https://expension.ch/css/default/color_v1.7.css
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
771196c25f42cabe2ba7a7d4999acbbb2d5d4439f0836e8a9fb12a41a68aa255
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Mon, 02 Apr 2012 21:00:00 GMT
Server
Apache
ETag
"11e6b-adf-792f7400-gzip"
Vary
Accept-Encoding
Content-Type
text/css
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=97
Content-Length
825
nav_v1.css
expension.ch/css/default/
648 B
661 B
Stylesheet
General
Full URL
https://expension.ch/css/default/nav_v1.css
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
5cb6828b08bba30d0041133e9f8e50cf7a2d4dc4cb679b6e231e6ad6ccf55e69
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Mon, 02 Apr 2012 21:00:00 GMT
Server
Apache
ETag
"11e67-288-792f7400-gzip"
Vary
Accept-Encoding
Content-Type
text/css
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=100
Content-Length
307
expension.gif
expension.ch/img/logo/
3 KB
4 KB
Image
General
Full URL
https://expension.ch/img/logo/expension.gif
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
d44acdc2382b3e13e85b6bcb207b6a74baa3f8bea3a2f8bbce33fb0b1fbe0081
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Tue, 09 Oct 2007 22:04:20 GMT
Server
Apache
ETag
"4341e-d67-8d098100"
Content-Type
image/gif
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=100
Content-Length
3431
on_5b6ef4eb3177d5ec4947e53ced927b12.png
expension.ch/img/title/menu/
691 B
992 B
Image
General
Full URL
https://expension.ch/img/title/menu/on_5b6ef4eb3177d5ec4947e53ced927b12.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
a028b22ffb67fcfd48dde2cfdabc329ce9459db6666e3778764293f3b0e2774b
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Wed, 10 Oct 2007 04:35:56 GMT
Server
Apache
ETag
"435bd-2b3-5820300"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=99
Content-Length
691
off01_4a37efc27391cc18714c72981d59c072.png
expension.ch/img/title/menu/
768 B
1 KB
Image
General
Full URL
https://expension.ch/img/title/menu/off01_4a37efc27391cc18714c72981d59c072.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
eb4ef0d675bc2674cf34507a06da9eee839a090280803602e122a647b48545ef
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Wed, 10 Oct 2007 04:35:54 GMT
Server
Apache
ETag
"435ac-300-5637e80"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=99
Content-Length
768
off05_3c1eb8efe71c7d03d6ababe48dc6a4e8.png
expension.ch/img/title/menu/
972 B
1 KB
Image
General
Full URL
https://expension.ch/img/title/menu/off05_3c1eb8efe71c7d03d6ababe48dc6a4e8.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
dedc013cf84b993cb599894094402e7b7ef5e2ca6a125f246dd9d3565243af8d
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Wed, 10 Oct 2007 04:35:55 GMT
Server
Apache
ETag
"435bc-3cc-572c0c0"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=99
Content-Length
972
off01_fb9a5e6d190b09159aad850c204a27b4.png
expension.ch/img/title/menu/
968 B
1 KB
Image
General
Full URL
https://expension.ch/img/title/menu/off01_fb9a5e6d190b09159aad850c204a27b4.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
44a835c9746c9732840b47ba5ac873625182d78c1c61f41221bdd767c4148d72
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Wed, 10 Oct 2007 04:35:54 GMT
Server
Apache
ETag
"435c0-3c8-5637e80"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=96
Content-Length
968
118182479c7f6eeab1b234bc61160991.png
expension.ch/img/title/
1 KB
1 KB
Image
General
Full URL
https://expension.ch/img/title/118182479c7f6eeab1b234bc61160991.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
6142cb93a4b062e91fc687687ffe76878c52c9151403268d487e45b4bf585dc6
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Wed, 10 Oct 2007 02:38:07 GMT
Server
Apache
ETag
"434f2-40e-6029a1c0"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=100
Content-Length
1038
reports.gif
expension.ch/img/misc/
19 KB
19 KB
Image
General
Full URL
https://expension.ch/img/misc/reports.gif
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
121c3a42e996546de7397bd89c534672c0edd021698427d0089fa798b6bb445f
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Tue, 09 Oct 2007 22:04:25 GMT
Server
Apache
ETag
"43458-4bb5-8d55cc40"
Content-Type
image/gif
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=100
Content-Length
19381
header.png
expension.ch/img/bg/
135 B
436 B
Image
General
Full URL
https://expension.ch/img/bg/header.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
cf5dd314538918225cf5e2d96cf281a7bfe4c52bce2316ce7a6c38117040135d
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Tue, 09 Oct 2007 22:03:58 GMT
Server
Apache
ETag
"4344f-87-8bb9cf80"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=98
Content-Length
135
main5col.png
expension.ch/img/bg/
151 B
452 B
Image
General
Full URL
https://expension.ch/img/bg/main5col.png
Requested by
Host: expension.ch
URL: https://expension.ch/index.php
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
49352ad858f620a71bbffbdedbbd92dbc077f0a88dcb17d6f64d5ec4687ccb73
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Tue, 09 Oct 2007 22:03:58 GMT
Server
Apache
ETag
"43450-97-8bb9cf80"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=98
Content-Length
151
favicon.ico
expension.ch/
4 KB
4 KB
Other
General
Full URL
https://expension.ch/favicon.ico
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
62.220.131.65 -, , ASN6893 (SAITIS-NETWORK, CH),
Reverse DNS
Software
Apache /
Resource Hash
d8e05388c9041772492df8d1235ab2d266bb929f4dd4719ce75bbf5cc30b4e31
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://www.google.com/
Accept-Language
de-CH,de;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

Date
Sun, 14 Apr 2024 10:19:35 GMT
X-Content-Type-Options
nosniff
Last-Modified
Tue, 09 Oct 2007 22:03:55 GMT
Server
Apache
ETag
"435fd-e36-8b8c08c0"
Content-Type
image/x-icon
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=97
Content-Length
3638

Verdicts & Comments Add Verdict or Comment

0 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.

1 Cookies

Domain/Path Name / Value
expension.ch/ Name: PHPSESSID
Value: 96e6d99b6dfd7d1739e211a78bc64784

1 Console Messages

Source Level URL
Text
recommendation verbose URL: https://expension.ch/index.php
Message:
[DOM] Input elements should have autocomplete attributes (suggested: "current-password"): (More info: https://goo.gl/9p2vKq) %o

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
X-Content-Type-Options nosniff