URL: https://ntfy.leokr.de/
Submission: On April 15 via api from US — Scanned from DE

Summary

This website contacted 1 IPs in 1 countries across 1 domains to perform 13 HTTP transactions. The main IP is 2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7, located in Germany and belongs to UBERSPACE, DE. The main domain is ntfy.leokr.de.
TLS certificate: Issued by R3 on April 13th 2024. Valid for: 3 months.
This is the only time ntfy.leokr.de was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
13 2a00:d0c0:200... 205766 (UBERSPACE)
13 1
Apex Domain
Subdomains
Transfer
13 leokr.de
ntfy.leokr.de
397 KB
13 1
Domain Requested by
13 ntfy.leokr.de ntfy.leokr.de
13 1

This site contains links to these domains. Also see Links.

Domain
ntfy.sh
Subject Issuer Validity Valid
ntfy.leokr.de
R3
2024-04-13 -
2024-07-12
3 months crt.sh

This page contains 1 frames:

Primary Page: https://ntfy.leokr.de/
Frame ID: 010445726B11D75230CCF8874646D4F0
Requests: 13 HTTP requests in this frame

Screenshot

Page Title

ntfy

Page Statistics

13
Requests

100 %
HTTPS

100 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

397 kB
Transfer

1307 kB
Size

0
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

13 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
ntfy.leokr.de/
2 KB
1 KB
Document
General
Full URL
https://ntfy.leokr.de/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
1cd3e8100c559cfc2df81c7fae5f257caae78b7e46f11d6856c82c1640abd54e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,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
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

accept-ranges
bytes
content-encoding
gzip
content-length
967
content-type
text/html; charset=utf-8
date
Mon, 15 Apr 2024 14:07:00 GMT
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
strict-transport-security
max-age=31536000
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
1; mode=block
app.css
ntfy.leokr.de/static/css/
124 B
410 B
Stylesheet
General
Full URL
https://ntfy.leokr.de/static/css/app.css
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
1f90092a14bd3941b2e3423ae4a476792e526fc77fed14e37eb9afb248f38f07
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:00 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
accept-ranges
bytes
content-length
127
x-xss-protection
1; mode=block
fonts.css
ntfy.leokr.de/static/css/
869 B
551 B
Stylesheet
General
Full URL
https://ntfy.leokr.de/static/css/fonts.css
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
4a41b00e057ae7425874516c76c7389283f7fc2868a2585cac7beffadd06c301
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:00 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
accept-ranges
bytes
content-length
268
x-xss-protection
1; mode=block
index-a511a8e6.js
ntfy.leokr.de/static/media/
1 MB
345 KB
Script
General
Full URL
https://ntfy.leokr.de/static/media/index-a511a8e6.js
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
924c7df5a507cf80941f88f720f52e53ae265e58d4e0a4eb3e8fd61a1bc6e07e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Origin
https://ntfy.leokr.de
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:00 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/javascript; charset=utf-8
accept-ranges
bytes
x-xss-protection
1; mode=block
config.js
ntfy.leokr.de/
493 B
703 B
Script
General
Full URL
https://ntfy.leokr.de/config.js
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
4c7d837571390155869cbb508b3a1226cba7798221c731526e0156178153e1fe
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:00 GMT
strict-transport-security
max-age=31536000
x-content-type-options
nosniff
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/javascript
content-length
493
x-xss-protection
1; mode=block
workbox-window.prod.es5-08b2315b.js
ntfy.leokr.de/static/media/
5 KB
2 KB
Script
General
Full URL
https://ntfy.leokr.de/static/media/workbox-window.prod.es5-08b2315b.js
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/static/media/index-a511a8e6.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
eefb484f1b35d4e8b03ac2e28cec613b7d3a8e658813935c59ff6662a1ee94f6
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/static/media/index-a511a8e6.js
Origin
https://ntfy.leokr.de
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/javascript; charset=utf-8
accept-ranges
bytes
x-xss-protection
1; mode=block
en-US.json
ntfy.leokr.de/static/langs/
19 B
276 B
Fetch
General
Full URL
https://ntfy.leokr.de/static/langs/en-US.json
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/static/media/index-a511a8e6.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
b16e15764b8bc06c5c3f9f19bc8b99fa48e7894aa5a6ccdad65da49bbf564793
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
text/plain; charset=utf-8
content-length
43
x-xss-protection
1; mode=block
en.json
ntfy.leokr.de/static/langs/
29 KB
7 KB
Fetch
General
Full URL
https://ntfy.leokr.de/static/langs/en.json
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/static/media/index-a511a8e6.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
fe989bdf89cdb0a0aaa396908b0abf497756d9c115cefd92d567fa49b926c71a
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
application/json
accept-ranges
bytes
x-xss-protection
1; mode=block
favicon.ico
ntfy.leokr.de/static/images/
15 KB
5 KB
Other
General
Full URL
https://ntfy.leokr.de/static/images/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
f4d25f77f0e2703c7c9db2fb28febc617d2f0449ffa65d1e067f6f6a40ce6f8f
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
image/vnd.microsoft.icon
accept-ranges
bytes
x-xss-protection
1; mode=block
roboto-v29-latin-500.woff2
ntfy.leokr.de/static/fonts/
16 KB
16 KB
Font
General
Full URL
https://ntfy.leokr.de/static/fonts/roboto-v29-latin-500.woff2
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/static/css/fonts.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
bb46ed079c3dd3c39af5051b4ada48f29f49151dad4fa218117bad2fdb5e616f
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/static/css/fonts.css
Origin
https://ntfy.leokr.de
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
font/woff
accept-ranges
bytes
x-xss-protection
1; mode=block
roboto-v29-latin-regular.woff2
ntfy.leokr.de/static/fonts/
15 KB
16 KB
Font
General
Full URL
https://ntfy.leokr.de/static/fonts/roboto-v29-latin-regular.woff2
Requested by
Host: ntfy.leokr.de
URL: https://ntfy.leokr.de/static/css/fonts.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
cc46322d5c4d41da447f26f7fa714827f2ec9a112968c12ef5736c7494985eca
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/static/css/fonts.css
Origin
https://ntfy.leokr.de
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
font/woff
accept-ranges
bytes
x-xss-protection
1; mode=block
ntfy-d7abf07b.svg
ntfy.leokr.de/static/media/
3 KB
1 KB
Image
General
Full URL
https://ntfy.leokr.de/static/media/ntfy-d7abf07b.svg
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
d7abf07b5a642261185699f4c2a69d9c64ff77492e2a18927783e9039a3ff65e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
image/svg+xml
accept-ranges
bytes
content-length
1174
x-xss-protection
1; mode=block
ntfy-outline-a774b740.svg
ntfy.leokr.de/static/media/
2 KB
1 KB
Image
General
Full URL
https://ntfy.leokr.de/static/media/ntfy-outline-a774b740.svg
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:d0c0:200:0:2c95:2eff:fe6e:d9e7 , Germany, ASN205766 (UBERSPACE, DE),
Reverse DNS
Software
/
Resource Hash
a774b7406a835f7d60e07410869e18f4c9d36dcc66214bdc975d414172367b1e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer
https://ntfy.leokr.de/
Accept-Language
de-DE,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
Mon, 15 Apr 2024 14:07:01 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=31536000
last-modified
Sat, 13 Apr 2024 20:44:59 GMT
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
content-type
image/svg+xml
accept-ranges
bytes
content-length
893
x-xss-protection
1; mode=block

Verdicts & Comments Add Verdict or Comment

2 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| config string| __reactRouterVersion

0 Cookies

1 Console Messages

Source Level URL
Text
network error URL: https://ntfy.leokr.de/static/langs/en-US.json
Message:
Failed to load resource: the server responded with a status of 404 ()

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
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block