sp-noreply-k-sensetess8673534.pages.dev Open in urlscan Pro
172.66.44.131  Malicious Activity! Public Scan

URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Submission Tags: @ecarlesi threat phishing Search All
Submission: On May 08 via api from IT — Scanned from IT

Summary

This website contacted 2 IPs in 1 countries across 2 domains to perform 9 HTTP transactions. The main IP is 172.66.44.131, located in United States and belongs to CLOUDFLARENET, US. The main domain is sp-noreply-k-sensetess8673534.pages.dev.
TLS certificate: Issued by GTS CA 1P5 on May 8th 2024. Valid for: 3 months.
This is the only time sp-noreply-k-sensetess8673534.pages.dev was scanned on urlscan.io!

urlscan.io Verdict: Potentially Malicious

Targeting these brands: Facebook (Social Network)

Domain & IP information

IP Address AS Autonomous System
5 172.66.44.131 13335 (CLOUDFLAR...)
4 151.101.193.229 54113 (FASTLY)
9 2
Apex Domain
Subdomains
Transfer
5 pages.dev
sp-noreply-k-sensetess8673534.pages.dev
1 MB
4 jsdelivr.net
cdn.jsdelivr.net — Cisco Umbrella Rank: 310
122 KB
9 2
Domain Requested by
5 sp-noreply-k-sensetess8673534.pages.dev sp-noreply-k-sensetess8673534.pages.dev
4 cdn.jsdelivr.net sp-noreply-k-sensetess8673534.pages.dev
9 2

This site contains no links.

Subject Issuer Validity Valid
sp-noreply-k-sensetess8673534.pages.dev
GTS CA 1P5
2024-05-08 -
2024-08-06
3 months crt.sh
jsdelivr.net
GlobalSign Atlas R3 DV TLS CA 2023 Q3
2023-09-27 -
2024-10-28
a year crt.sh

This page contains 1 frames:

Primary Page: https://sp-noreply-k-sensetess8673534.pages.dev/
Frame ID: D1E0E2B868AEC0B072BCA495451320B5
Requests: 9 HTTP requests in this frame

Screenshot

Page Title

Business Help Center | Privacy Policy

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

Overall confidence: 100%
Detected patterns
  • <link [^>]*?href="?[a-zA-Z]*?:?//cdn\.jsdelivr\.net/
  • //cdn\.jsdelivr\.net/

Page Statistics

9
Requests

100 %
HTTPS

0 %
IPv6

2
Domains

2
Subdomains

2
IPs

1
Countries

1514 kB
Transfer

2061 kB
Size

0
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

9 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
sp-noreply-k-sensetess8673534.pages.dev/
1 KB
1 KB
Document
General
Full URL
https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.66.44.131 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d0ec3f116363476da273f569f19dc87de41604f9fb972a60849d409562806bbe
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=0, must-revalidate
cf-ray
880bf8620b350d66-MXP
content-encoding
br
content-type
text/html; charset=utf-8
date
Wed, 08 May 2024 19:48:57 GMT
etag
W/"8e7c4bea41065de4ccbb335583d7bc90"
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
referrer-policy
strict-origin-when-cross-origin
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=CwCTsVdfXCrL9e7agx7jR%2FZ3l%2B%2BlnXofxmsduuW2V%2B%2F7kFK1YFQfdPQAIZgDutCtaQSerpLTVnzSOsaMOhUwGm56Pp21ouhJMizhEycetE%2Ft%2FaxBhqZDaHhKftnSj1gD9odCVVasHa1Zemqw%2BuYMCZKrREcH53X7Jo8%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
vary
Accept-Encoding
x-content-type-options
nosniff
bootstrap.min.css
cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/
227 KB
35 KB
Stylesheet
General
Full URL
https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.193.229 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
7f1d37f0d90b6385354c2ac10e2bb91563c46bd7a266ed351222ebcac8496c2a
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Origin
https://sp-noreply-k-sensetess8673534.pages.dev
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
date
Wed, 08 May 2024 19:48:57 GMT
x-content-type-options
nosniff
content-encoding
br
age
2829294
x-jsd-version
5.3.0
x-cache
HIT, HIT
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length
34860
x-served-by
cache-fra-eddf8230088-FRA, cache-lin1730041-LIN
x-jsd-version-type
version
etag
W/"38dd2-sjFlHg/Wi72HWBifvTZCxGLTT6Y"
vary
Accept-Encoding
content-type
text/css; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges
bytes
timing-allow-origin
*
index-ad6abe2c.js
sp-noreply-k-sensetess8673534.pages.dev/assets/
272 KB
93 KB
Script
General
Full URL
https://sp-noreply-k-sensetess8673534.pages.dev/assets/index-ad6abe2c.js
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.66.44.131 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
1e960a72dbf29ae14e949de12493abe39fe1a568a3e36bc45914d8d017c58733
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Origin
https://sp-noreply-k-sensetess8673534.pages.dev
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 08 May 2024 19:48:57 GMT
content-encoding
br
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server
cloudflare
etag
W/"e7d921bb3fdc87abe8a9aa7a02b7842f"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Rwkr0yzSQiM01e0MZvsWqXO8q5I%2FLlB%2F0IrG%2BakrjDCNPWFvQYN2all2%2BMZHw%2BbFyk2X3ojR9j7FNIS01QnTwoZdxYtMalQCSgHlnDgTDbT2F2npxAtkcu3rNbcB1eJA7S2xkkqjL82zkuAMw3uM%2BnTFGLGfr0jlfJA%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
cf-ray
880bf863fe770d66-MXP
alt-svc
h3=":443"; ma=86400
index-d076d531.css
sp-noreply-k-sensetess8673534.pages.dev/assets/
10 KB
2 KB
Stylesheet
General
Full URL
https://sp-noreply-k-sensetess8673534.pages.dev/assets/index-d076d531.css
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.66.44.131 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d076d531cc08f01d753f7cda70ed0e97907546f161cbf470b72ef2fea31c1f0b
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 08 May 2024 19:48:57 GMT
content-encoding
br
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server
cloudflare
etag
W/"b46365c677a01353b73be922ebf8d4d5"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=w5G4V7%2FVI9te6RHP5jKf90aHNHNJRv%2FQqvcDojheQ5kkkYPjD6KT1aJDE5kcd1MSpl2GSBRNq98UHp7DrbmyGW4R6pieb72pZT47yUFm00j%2Bj8VodUBn5wneM5%2B81CbaOdN4uH6TrQB3an%2FSG6Rf6l8Rs2B7ZAOY%2B7c%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
cf-ray
880bf863fe7a0d66-MXP
alt-svc
h3=":443"; ma=86400
react.production.min.js
cdn.jsdelivr.net/npm/react/umd/
10 KB
4 KB
Script
General
Full URL
https://cdn.jsdelivr.net/npm/react/umd/react.production.min.js
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.193.229 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
d949f1c3687aedadcedac85261865f29b17cd273997e7f6b2bfc53b2f9d4c4dd
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Origin
https://sp-noreply-k-sensetess8673534.pages.dev
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
date
Wed, 08 May 2024 19:48:57 GMT
x-content-type-options
nosniff
content-encoding
br
age
5837
x-jsd-version
18.3.1
x-cache
HIT, HIT
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length
4467
x-served-by
cache-fra-eddf8230081-FRA, cache-lin1730041-LIN
x-jsd-version-type
version
etag
W/"29ff-qneuTEn1Jbwh3h0E8Ipdc5YsfM4"
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=604800, s-maxage=43200
accept-ranges
bytes
timing-allow-origin
*
react-dom.production.min.js
cdn.jsdelivr.net/npm/react-dom/umd/
129 KB
44 KB
Script
General
Full URL
https://cdn.jsdelivr.net/npm/react-dom/umd/react-dom.production.min.js
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.193.229 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
35f4f974f4b2bcd44da73963347f8952e341f83909e4498227d4e26b98f66f0d
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Origin
https://sp-noreply-k-sensetess8673534.pages.dev
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
date
Wed, 08 May 2024 19:48:57 GMT
x-content-type-options
nosniff
content-encoding
br
age
41242
x-jsd-version
18.3.1
x-cache
HIT, HIT
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length
44549
x-served-by
cache-fra-eddf8230141-FRA, cache-lin1730041-LIN
x-jsd-version-type
version
etag
W/"202fb-/rjdydBWak+glxpuEThlhhjNrP4"
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=604800, s-maxage=43200
accept-ranges
bytes
timing-allow-origin
*
react-bootstrap.min.js
cdn.jsdelivr.net/npm/react-bootstrap@next/dist/
116 KB
40 KB
Script
General
Full URL
https://cdn.jsdelivr.net/npm/react-bootstrap@next/dist/react-bootstrap.min.js
Requested by
Host: sp-noreply-k-sensetess8673534.pages.dev
URL: https://sp-noreply-k-sensetess8673534.pages.dev/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.193.229 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
150523e0558852a799aae470ee18fdb61f89cf260ee6da8efd8687621156ae33
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Origin
https://sp-noreply-k-sensetess8673534.pages.dev
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
date
Wed, 08 May 2024 19:48:57 GMT
x-content-type-options
nosniff
content-encoding
br
age
7438
x-jsd-version
2.9.0-beta.1
x-cache
HIT, HIT
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length
40369
x-served-by
cache-fra-eddf8230077-FRA, cache-lin1730041-LIN
x-jsd-version-type
version
etag
W/"1d187-o2+OYezMEsMzpEcT3E+ubsFUj8Q"
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=604800, s-maxage=43200
accept-ranges
bytes
timing-allow-origin
*
loadingLogo-c296b7a5-c296b7a5.gif
sp-noreply-k-sensetess8673534.pages.dev/assets/
1 MB
1 MB
Image
General
Full URL
https://sp-noreply-k-sensetess8673534.pages.dev/assets/loadingLogo-c296b7a5-c296b7a5.gif
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.66.44.131 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
c296b7a52bb832ae0bdb761d86989ce156c5cff905215c534c34d76f0474ca2c
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 08 May 2024 19:48:57 GMT
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server
cloudflare
etag
"e3dd4c1593c2efac1e0b87a1936b2a4f"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=M3HG3wXdKzonWj2L1Ru%2BHEZzxD40CzVNfOPW%2B%2FP4F3GvDyvc6jMySlb9FxW6q49whNFKXJA%2BREwRx6brFcDMx%2FUY%2B4%2BIyPP5%2FpCX3QmfHRKO8H2nZ9XoeKUkpMkTeKr2CEpktXpakBnjAQRxb8aXKA%2FM0%2BA0vA4GqXQ%3D"}],"group":"cf-nel","max_age":604800}
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
cf-ray
880bf86508040d66-MXP
alt-svc
h3=":443"; ma=86400
content-length
1258265
facebook_logo_icon_147291-f2dfc6fd.ico
sp-noreply-k-sensetess8673534.pages.dev/assets/
66 KB
67 KB
Other
General
Full URL
https://sp-noreply-k-sensetess8673534.pages.dev/assets/facebook_logo_icon_147291-f2dfc6fd.ico
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.66.44.131 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
4bfd4438796ba7557f0ae7d7a99778d67d14652ec68771ee79d9a624c65486fd
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sp-noreply-k-sensetess8673534.pages.dev/
Accept-Language
it-IT,it;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 08 May 2024 19:48:57 GMT
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server
cloudflare
etag
"0ce70d7a4746dfe57b6742a6942dacfa"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=GKMNHJzn2dvjm6VnWDyQW1G0Uyz2R82FPzeuf2YMgFXWNPJRRAfWDBrf6Ni6ADVl7BEt54kk%2Fn6xM9U0IoSnmbjK1XbnlNx0JOe23QDdRVhwvI2T9oxdGAucKhyn9ahNDQQS%2BVjXTjMMa2RA5vHZK4Ji57bTD3tEcYY%3D"}],"group":"cf-nel","max_age":604800}
content-type
null
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
cf-ray
880bf86508080d66-MXP
alt-svc
h3=":443"; ma=86400
content-length
67646

Verdicts & Comments Add Verdict or Comment

Potentially malicious activity detected
Disclaimer: These verdicts should be used to detect potentially malicious websites, not as a final verdict!

urlscan

Phishing against: Facebook (Social Network)

4 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.

object| React object| ReactDOM object| ReactBootstrap object| Alert

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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