Submitted URL: https://citdl.info/#ne
Effective URL: https://citdl.info/
Submission Tags: 0xscam
Submission: On November 23 via api from US — Scanned from DE

Summary

This website contacted 3 IPs in 1 countries across 1 domains to perform 9 HTTP transactions. The main IP is 172.67.205.115, located in United States and belongs to CLOUDFLARENET, US. The main domain is citdl.info.
TLS certificate: Issued by WE1 on November 21st 2024. Valid for: 3 months.
This is the only time citdl.info was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 5 2606:4700:303... 13335 (CLOUDFLAR...)
4 172.67.205.115 13335 (CLOUDFLAR...)
9 3
Apex Domain
Subdomains
Transfer
9 citdl.info
citdl.info
17 KB
9 1
Domain Requested by
9 citdl.info 1 redirects citdl.info
9 1

This site contains no links.

Subject Issuer Validity Valid
citdl.info
WE1
2024-11-21 -
2025-02-19
3 months crt.sh

This page contains 3 frames:

Primary Page: https://citdl.info/
Frame ID: FDA4590AC3C96F361E87BE3E01D163ED
Requests: 5 HTTP requests in this frame

Frame: https://citdl.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/main.js
Frame ID: D82A7735939631C2327B5CE5119B90DF
Requests: 2 HTTP requests in this frame

Frame: https://citdl.info/cdn-cgi/challenge-platform/scripts/jsd/main.js
Frame ID: DDA8E3681411733AB1F60DE8C019EC54
Requests: 2 HTTP requests in this frame

Screenshot

Page Title

403 Forbidden

Page URL History Show full URLs

  1. https://citdl.info/ Page URL
  2. https://citdl.info/ Page URL

Page Statistics

9
Requests

67 %
HTTPS

50 %
IPv6

1
Domains

1
Subdomains

3
IPs

1
Countries

16 kB
Transfer

26 kB
Size

7
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://citdl.info/ Page URL
  2. https://citdl.info/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 2
  • https://citdl.info/cdn-cgi/challenge-platform/scripts/jsd/main.js HTTP 302
  • https://citdl.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/main.js

9 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
/
citdl.info/
7 KB
8 KB
Document
General
Full URL
https://citdl.info/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::6815:34eb , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
b91dad90a3f243689becb6b813f2efbdbbfb88ebb9028f03e9937a4737ffa5bd
Security Headers
Name Value
X-Content-Type-Options nosniff nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=0 no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-cache-status
DYNAMIC
cf-ray
8e72c1c65ff71907-FRA
content-type
text/html; charset=utf-8
date
Sat, 23 Nov 2024 17:07:41 GMT
expires
0
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
pragma
no-cache
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=9mbbF5mS0p6oc%2Bit97CdShUxb7lyuzI5tT5J4zgnH0skHgdTuVxkTmbcnsvBtbs19u%2F1HRcaxaF6bEWsItgcLSBF%2BN%2BvDK4z18PO%2FF7jVvIF5xI4mMRcjgtyWBJq%2B31S8tLK5z9rbtb3"}],"group":"cf-nel","max_age":604800}
server
cloudflare
server-timing
cfL4;desc="?proto=TCP&rtt=58728&sent=9&recv=11&lost=0&retrans=1&sent_bytes=4883&recv_bytes=2309&delivery_rate=41205&cwnd=252&unsent_bytes=0&cid=b7c0d0d5b8bd7aa6&ts=141&x=0"
x-content-type-options
nosniff nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
1; mode=block 1; mode=block
/
citdl.info/
548 B
582 B
XHR
General
Full URL
https://citdl.info/
Requested by
Host: citdl.info
URL: https://citdl.info/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::6815:34eb , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
X-Content-Type-Options nosniff, nosniff
X-Xss-Protection 1; mode=block, 1; mode=block

Request headers

5NV0JeO3ZJEHX8FT9AC21OJ7ab8
42353146
X-Requested-TimeStamp-Combination
Referer
https://citdl.info/
X-Requested-TimeStamp
X-Requested-Type-Combination
GET
X-Requested-with
XMLHttpRequest
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
X-Requested-Type
GET
sJn1D44wtUF7ap3soTmQgep7L0I
z4c-hgs0Jp9DIOZkcu5pFs4d74
Content-type
application/x-www-form-urlencoded
X-Requested-TimeStamp-Expire

Response headers

nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding
zstd
cf-cache-status
DYNAMIC
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=vhsPrstZDQABVvdpEw%2FagerpQIbGUXq6Jr1pHcrT97Nv9cgR3UwY%2BX%2BT1vMItK0frC0CEtl5gT7E5nBF%2BelCZ0YC8VaO%2FFMkAVQg6ihoC3djnxh3gLFgR2S32IkpYlpzLM%2FkP3sQOB7M"}],"group":"cf-nel","max_age":604800}
x-content-type-options
nosniff, nosniff
cf-ray
8e72c1c7c9231907-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=TCP&rtt=81439&sent=28&recv=21&lost=0&retrans=1&sent_bytes=14124&recv_bytes=3219&delivery_rate=131363&cwnd=255&unsent_bytes=0&cid=b7c0d0d5b8bd7aa6&ts=357&x=0"
date
Sat, 23 Nov 2024 17:07:41 GMT
x-xss-protection
1; mode=block, 1; mode=block
content-type
text/html
vary
Accept-Encoding
server
cloudflare
main.js
citdl.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/ Frame D82A
Redirect Chain
  • https://citdl.info/cdn-cgi/challenge-platform/scripts/jsd/main.js
  • https://citdl.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/main.js?
8 KB
4 KB
Script
General
Full URL
https://citdl.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/main.js?
Protocol
H3
Server
172.67.205.115 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer

Response headers

cache-control
max-age=14400, stale-if-error=10800, stale-while-revalidate=10800, public
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding
zstd
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=J5mRVamiMSOi06tFuxL%2Fehb5Mkd1xRpGH4w4cY%2ByKEa0BqbrSB3FLkOlh8nJtTs%2FHuaVlqsyGNMbrS4DlFaNyL7NapcSYdKLBoN8do1rqgHFpXpJF6AtfSXEjpnC"}],"group":"cf-nel","max_age":604800}
x-content-type-options
nosniff
cf-ray
8e72c1c84f6937fc-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=QUIC&rtt=69255&sent=12&recv=8&lost=0&retrans=0&sent_bytes=4233&recv_bytes=5131&delivery_rate=47188&cwnd=12000&unsent_bytes=0&cid=eb72e7fecf797a41&ts=86&x=1", cfHdrFlush;dur=0
date
Sat, 23 Nov 2024 17:07:41 GMT
content-type
application/javascript; charset=UTF-8
vary
Accept-Encoding
server
cloudflare

Redirect headers

cache-control
max-age=300, stale-if-error=10800, stale-while-revalidate=10800, public
location
/cdn-cgi/challenge-platform/h/g/scripts/jsd/e4025c85ea63/main.js?
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=gwOL%2B%2BlCqWsMPDze1AfeRrdgsvzRGoGdNxhGcR0V9GZ77uqJvBl8fbPY6rc9trLdoxkOiA4U07XPKdajvi1ratmLbw4Z4jCy%2FXajCOAcQxqy8VxdrK3vZbOQEgakkXcQVMVQisPI0%2FHs"}],"group":"cf-nel","max_age":604800}
cf-ray
8e72c1c7c9261907-FRA
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
0
server-timing
cfL4;desc="?proto=TCP&rtt=81439&sent=27&recv=21&lost=0&retrans=1&sent_bytes=13595&recv_bytes=3219&delivery_rate=131363&cwnd=255&unsent_bytes=0&cid=b7c0d0d5b8bd7aa6&ts=341&x=0"
date
Sat, 23 Nov 2024 17:07:41 GMT
vary
Accept-Encoding
server
cloudflare
favicon.ico
citdl.info/
548 B
647 B
Other
General
Full URL
https://citdl.info/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::6815:34eb , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
X-Content-Type-Options nosniff, nosniff
X-Xss-Protection 1; mode=block, 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer
https://citdl.info/

Response headers

cache-control
public, max-age=315360000, stale-while-revalidate=315360000, stale-if-error=315360000, immutable
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding
zstd
cf-cache-status
MISS
pragma
public
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=cNp4%2BXaF38JZqu8NQeM2ErSAUjBek7CT0PH65gUWo88hVa5PAN2Qj%2Bs4l%2B9EyrOkc0tPnU8vxWVPmgfkCuEXYtU5kp8DWzMIqgPywAc5HT5WnbkymxkWKGRc8mA39RExiCTfGKWfcnIr"}],"group":"cf-nel","max_age":604800}
x-content-type-options
nosniff, nosniff
cf-ray
8e72c1c7d92d1907-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=TCP&rtt=81439&sent=31&recv=21&lost=0&retrans=1&sent_bytes=14772&recv_bytes=3219&delivery_rate=131363&cwnd=255&unsent_bytes=0&cid=b7c0d0d5b8bd7aa6&ts=380&x=0"
date
Sat, 23 Nov 2024 17:07:41 GMT
x-xss-protection
1; mode=block, 1; mode=block
content-type
text/html
vary
Accept-Encoding
server
cloudflare
Primary Request /
citdl.info/
1 KB
1 KB
Document
General
Full URL
https://citdl.info/
Requested by
Host: citdl.info
URL: https://citdl.info/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.67.205.115 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
ddcca70ec7c6371012614a382d2d56801f3ede573f37568ed77ddd70c031aea3
Security Headers
Name Value
X-Content-Type-Options nosniff nosniff
X-Xss-Protection 1; mode=block 1; mode=block

Request headers

Referer
https://citdl.info/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray
8e72c1c84f7637fc-FRA
content-encoding
zstd
content-type
text/html
date
Sat, 23 Nov 2024 17:07:41 GMT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=QjighgTuETv12iwwt0D1xIP1pLmS3pOFboqvGZYPjK2w9vgLERRebANRhs6leUbRzRPXllRVHsh7yp9bKVv3bDaun1AhGFuwFwbG5KgjPA8MOBjfqKavCs08xDCg"}],"group":"cf-nel","max_age":604800}
server
cloudflare
server-timing
cfL4;desc="?proto=QUIC&rtt=69255&sent=16&recv=8&lost=0&retrans=0&sent_bytes=8823&recv_bytes=5131&delivery_rate=47188&cwnd=12000&unsent_bytes=0&cid=eb72e7fecf797a41&ts=128&x=1" cfHdrFlush;dur=0
vary
Accept-Encoding
x-content-type-options
nosniff nosniff
x-xss-protection
1; mode=block 1; mode=block
8e72c1c65ff71907
citdl.info/cdn-cgi/challenge-platform/h/g/jsd/r/ Frame D82A
0
0

main.js
citdl.info/cdn-cgi/challenge-platform/scripts/jsd/ Frame DDA8
8 KB
0
Script
General
Full URL
https://citdl.info/cdn-cgi/challenge-platform/scripts/jsd/main.js
Requested by
Host: citdl.info
URL: https://citdl.info/
Protocol
H3
Server
172.67.205.115 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
01fe1774c6b11b7a15b464fa2e59737102c1226c24e7ef62a87b4189b95e25c6
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer

Response headers

cache-control
max-age=14400, stale-if-error=10800, stale-while-revalidate=10800, public
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding
zstd
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=J5mRVamiMSOi06tFuxL%2Fehb5Mkd1xRpGH4w4cY%2ByKEa0BqbrSB3FLkOlh8nJtTs%2FHuaVlqsyGNMbrS4DlFaNyL7NapcSYdKLBoN8do1rqgHFpXpJF6AtfSXEjpnC"}],"group":"cf-nel","max_age":604800}
x-content-type-options
nosniff
cf-ray
8e72c1c84f6937fc-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=QUIC&rtt=69255&sent=12&recv=8&lost=0&retrans=0&sent_bytes=4233&recv_bytes=5131&delivery_rate=47188&cwnd=12000&unsent_bytes=0&cid=eb72e7fecf797a41&ts=86&x=1", cfHdrFlush;dur=0
date
Sat, 23 Nov 2024 17:07:41 GMT
content-type
application/javascript; charset=UTF-8
vary
Accept-Encoding
server
cloudflare
8e72c1c84f7637fc
citdl.info/cdn-cgi/challenge-platform/h/g/jsd/r/ Frame DDA8
0
1 KB
XHR
General
Full URL
https://citdl.info/cdn-cgi/challenge-platform/h/g/jsd/r/8e72c1c84f7637fc
Requested by
Host: citdl.info
URL: https://citdl.info/cdn-cgi/challenge-platform/scripts/jsd/main.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.67.205.115 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Content-Type
application/json
Referer

Response headers

nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=4I7wWjSgdem7l8pZ5dj76kg0Vs6K0GJKOYdp7soxZ2H6mi7y05AA%2FhrPaPIZGG2aFLji222X23G9%2F2FpdF88XAF57Baf8%2BZeG6hyZUCOUCmXgfUIpeUQg5UJr07d"}],"group":"cf-nel","max_age":604800}
cf-ray
8e72c1c9b8f237fc-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=QUIC&rtt=94544&sent=29&recv=30&lost=0&retrans=0&sent_bytes=10335&recv_bytes=23348&delivery_rate=206&cwnd=12000&unsent_bytes=0&cid=eb72e7fecf797a41&ts=332&x=1", cfHdrFlush;dur=0
content-length
0
date
Sat, 23 Nov 2024 17:07:41 GMT
content-type
text/plain; charset=UTF-8
server
cloudflare
favicon.ico
citdl.info/
548 B
0
Other
General
Full URL
https://citdl.info/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::6815:34eb , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
25fb23868ebf48348f9e438e00cb9b9d9b3a054f32482a781c762cc4f9cc6393
Security Headers
Name Value
X-Content-Type-Options nosniff, nosniff
X-Xss-Protection 1; mode=block, 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer
https://citdl.info/

Response headers

cache-control
public, max-age=315360000, stale-while-revalidate=315360000, stale-if-error=315360000, immutable
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding
zstd
cf-cache-status
MISS
pragma
public
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=cNp4%2BXaF38JZqu8NQeM2ErSAUjBek7CT0PH65gUWo88hVa5PAN2Qj%2Bs4l%2B9EyrOkc0tPnU8vxWVPmgfkCuEXYtU5kp8DWzMIqgPywAc5HT5WnbkymxkWKGRc8mA39RExiCTfGKWfcnIr"}],"group":"cf-nel","max_age":604800}
x-content-type-options
nosniff, nosniff
cf-ray
8e72c1c7d92d1907-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfL4;desc="?proto=TCP&rtt=81439&sent=31&recv=21&lost=0&retrans=1&sent_bytes=14772&recv_bytes=3219&delivery_rate=131363&cwnd=255&unsent_bytes=0&cid=b7c0d0d5b8bd7aa6&ts=380&x=0"
date
Sat, 23 Nov 2024 17:07:41 GMT
x-xss-protection
1; mode=block, 1; mode=block
content-type
text/html
vary
Accept-Encoding
server
cloudflare

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain
citdl.info
URL
https://citdl.info/cdn-cgi/challenge-platform/h/g/jsd/r/8e72c1c65ff71907

Verdicts & Comments Add Verdict or Comment

1 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| 0

7 Cookies

Domain/Path Name / Value
citdl.info/ Name: BI1s2jPRDRKUJePg3qG7Msv5EXw
Value: iq9VSgUi3G5_6oKzYmHeAMCyKYI
citdl.info/ Name: HPeRqt7s9AaOoK1dt4oaEyFCJhU
Value: 1732381658
citdl.info/ Name: E5MLLiaGh-gY-KBzXBQNnTt_WeY
Value: 1732468058
citdl.info/ Name: LLykK1-sIOMqXtLGhoF8sV6xnws
Value: rWoanM96hGiypEHBcnx43RxVAbQ
citdl.info/ Name: fwRXG8B5YO-qPtLhYrsajSNZQak
Value: sWFiAwbzU68qhY2cOm9A4bL7XHM
citdl.info/ Name: s8hlUIpL5ehDBesi50YT7c26_wU
Value: w4jZz1udCgs6sp02pebRNzBrfzw
.citdl.info/ Name: cf_clearance
Value: bN25X7ZiqW9pyU70RuZS7GuDXiQr.dzLLNZ9PDZk7O4-1732381661-1.2.1.1-7P87CRaVKQVMBXYxIzxm08IZWNT7KewqhF94b2fCYJtBoBFwWR5p337jfLWjd1PYp54rmoSUOlvC7NeIcDPp31mcXEMldkgLWiwMT2HosLOt7tan7.6Z6JyGwHGQPMl_CDpAM_6lLUkyqIjvecLNGHequxjxzunqueJiaxkKKtx6gflMuxwo7HnXRHdcF8ypgj_IR6b8dIVrk_1vRAZ0DRuCEtRkNQ7qLS.OR1I84a4.r1POlHpAMCOF4T9zz3Ci3iNzjK79ekCqqiD1QyHufSTvKO8Ux_0XGIOGJp9DFCO0aBiD97qH3mcSdsbumo_wl.EAYaJDovT2J_9vyjrEgQ7IOudL2BXwp27doSHmDq.kbM2HzxG18jhvbjnifXh9

5 Console Messages

Source Level URL
Text
network error URL: https://citdl.info/#ne
Message:
Failed to load resource: the server responded with a status of 503 ()
network error URL: https://citdl.info/
Message:
Failed to load resource: the server responded with a status of 403 ()
network error URL: https://citdl.info/favicon.ico
Message:
Failed to load resource: the server responded with a status of 403 ()
network error URL: https://citdl.info/#ne
Message:
Failed to load resource: the server responded with a status of 403 ()
network error URL: https://citdl.info/favicon.ico
Message:
Failed to load resource: the server responded with a status of 403 ()

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 nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block 1; mode=block