URL: http://goeuro.de/
Submission: On November 23 via manual from NL — Scanned from DE

Summary

This website contacted 4 IPs in 1 countries across 3 domains to perform 11 HTTP transactions. The main IP is 2606:4700:4400::ac40:92b0, located in United States and belongs to CLOUDFLARENET, US. The main domain is goeuro.de.
This is the only time goeuro.de was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 7 2606:4700:440... 13335 (CLOUDFLAR...)
2 2606:4700::68... 13335 (CLOUDFLAR...)
1 1 2606:4700:440... 13335 (CLOUDFLAR...)
1 2606:4700:440... 13335 (CLOUDFLAR...)
11 4
Apex Domain
Subdomains
Transfer
8 goeuro.de
goeuro.de
www.goeuro.de
80 KB
2 cloudflare.com
challenges.cloudflare.com — Cisco Umbrella Rank: 6439
11 KB
1 omio.com
de.omio.com
11 3
Domain Requested by
7 goeuro.de 1 redirects goeuro.de
2 challenges.cloudflare.com goeuro.de
challenges.cloudflare.com
1 de.omio.com goeuro.de
1 www.goeuro.de 1 redirects
11 4

This site contains no links.

Subject Issuer Validity Valid
challenges.cloudflare.com
Cloudflare Inc ECC CA-3
2023-08-18 -
2024-08-17
a year crt.sh

This page contains 2 frames:

Primary Page: http://goeuro.de/
Frame ID: 417D47CEDC3909CEB92C283E5FEC3F6C
Requests: 11 HTTP requests in this frame

Frame: https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/kfw2y/0x4AAAAAAADnPIDROrmt1Wwj/light/normal
Frame ID: CA8C51CE45525527B40B77284DE24CE7
Requests: 1 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. http://goeuro.de/ Page URL
  2. http://goeuro.de/ Page URL

Page Statistics

11
Requests

18 %
HTTPS

100 %
IPv6

3
Domains

4
Subdomains

4
IPs

1
Countries

90 kB
Transfer

236 kB
Size

6
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://goeuro.de/ Page URL
  2. http://goeuro.de/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 4
  • http://goeuro.de/favicon.ico HTTP 301
  • https://www.goeuro.de/favicon.ico HTTP 301
  • https://de.omio.com/

11 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
/
goeuro.de/
5 KB
4 KB
Document
General
Full URL
http://goeuro.de/
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d08dedd4b1aa77c6e6b3c9924daae86e8e3ee86186cb6adfbbb75a972c8c054b
Security Headers
Name Value
X-Frame-Options SAMEORIGIN

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

CF-RAY
82a756e3fc3b91db-FRA
Cache-Control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection
close
Content-Encoding
gzip
Content-Type
text/html; charset=UTF-8
Cross-Origin-Embedder-Policy
require-corp
Cross-Origin-Opener-Policy
same-origin
Cross-Origin-Resource-Policy
same-origin
Date
Thu, 23 Nov 2023 06:26:13 GMT
Expires
Thu, 01 Jan 1970 00:00:01 GMT
Origin-Agent-Cluster
?1
Permissions-Policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
Referrer-Policy
same-origin
Server
cloudflare
Transfer-Encoding
chunked
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
alt-svc
h3=":443"; ma=86400
cf-mitigated
challenge
challenges.css
goeuro.de/cdn-cgi/styles/
6 KB
3 KB
Stylesheet
General
Full URL
http://goeuro.de/cdn-cgi/styles/challenges.css
Requested by
Host: goeuro.de
URL: http://goeuro.de/
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
2b0bd09c1cc7119d27e45353a59bf6c2721563e1689853ff704057a7439508d2
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Frame-Options DENY

Request headers

accept-language
de-DE,de;q=0.9
Referer
http://goeuro.de/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

Date
Thu, 23 Nov 2023 06:26:13 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Thu, 16 Nov 2023 21:55:54 GMT
Server
cloudflare
ETag
W/"65568fea-19c8"
Transfer-Encoding
chunked
X-Frame-Options
DENY
Content-Type
text/css
Vary
Accept-Encoding
Cache-Control
max-age=7200, public
Connection
keep-alive
CF-RAY
82a756e43dc65d46-FRA
Expires
Thu, 23 Nov 2023 08:26:13 GMT
v1
goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/
172 KB
59 KB
Script
General
Full URL
http://goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=82a756e3fc3b91db
Requested by
Host: goeuro.de
URL: http://goeuro.de/
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
e5be0b3f15f8c5a303e1d427218c79f12e6f4c75b892694aba7ad6613d7596ba

Request headers

accept-language
de-DE,de;q=0.9
Referer
http://goeuro.de/?__cf_chl_rt_tk=IuhJRiy.RWhPghqKShUgMrvmW.gWyMNLoVJ1VjNONCw-1700720773-0-gaNycGzNBvs
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

Date
Thu, 23 Nov 2023 06:26:13 GMT
Content-Encoding
gzip
Server
cloudflare
Transfer-Encoding
chunked
Content-Type
application/javascript; charset=UTF-8
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection
keep-alive
CF-RAY
82a756e44ddf5d46-FRA
alt-svc
h3=":443"; ma=86400
api.js
challenges.cloudflare.com/turnstile/v0/g/9914b343/
33 KB
11 KB
Script
General
Full URL
https://challenges.cloudflare.com/turnstile/v0/g/9914b343/api.js?onload=FAIg1&render=explicit
Requested by
Host: goeuro.de
URL: http://goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=82a756e3fc3b91db
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6811:3b8 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
51cd12da61a7401c73472b2ac77067adfa30e9fc0545b4b7c240e9154e011fc7

Request headers

Referer
Origin
http://goeuro.de
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

date
Thu, 23 Nov 2023 06:26:13 GMT
content-encoding
br
server
cloudflare
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
max-age=31536000
cf-ray
82a756e4e95c37e8-FRA
alt-svc
h3=":443"; ma=86400
/
de.omio.com/
Redirect Chain
  • http://goeuro.de/favicon.ico
  • https://www.goeuro.de/favicon.ico
  • https://de.omio.com/
0
0
Image
General
Full URL
https://de.omio.com/
Requested by
Host: goeuro.de
URL: http://goeuro.de/
Protocol
H2
Server
2606:4700:4400::ac40:9b8e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

Redirect headers

date
Thu, 23 Nov 2023 06:26:14 GMT
strict-transport-security
max-age=0;
x-content-type-options
nosniff
cf-cache-status
MISS
lps-proxy-response-prepared
2023-11-23 06:26:14.074721344 +0000 UTC m=+140013.123043083
lps-proxy-total-latency
5
lps-proxy-upstream
lps-platform
alt-svc
h3=":443"; ma=86400
content-length
0
x-xss-protection
1
server
cloudflare
x-frame-options
SAMEORIGIN
vary
Accept-Encoding
location
https://de.omio.com/
cf-ray
82a756e5997f1901-FRA
lps-proxy-request-received
2023-11-23 06:26:14.069636134 +0000 UTC
truncated
/
586 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
fc95732d9ff3b17fcb3e64fd12c0d451c38e64e1a4b420c556a7feb756a0a3fa

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

Content-Type
image/png
badfc795-22ab-43c7-9af9-b98499b6e282
http://goeuro.de/
13 B
0
Other
General
Full URL
blob:http://goeuro.de/badfc795-22ab-43c7-9af9-b98499b6e282
Requested by
Host: goeuro.de
URL: http://goeuro.de/
Protocol
BLOB
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
8860e7fef89219a219cb11d18bd8e4a322f32072613f86e935e7fe162ab69c04

Request headers

accept-language
de-DE,de;q=0.9
Referer
http://goeuro.de/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36

Response headers

Content-Length
13
Content-Type
text/javascript
c92e55efd1b647c
goeuro.de/cdn-cgi/challenge-platform/h/g/flow/ov1/895412227:1700717289:Gk76rXER2xrxxJGpnwDNK4Y69WP1rfG6g5A6SASzdao/82a756e3fc3b91db/
12 KB
10 KB
XHR
General
Full URL
http://goeuro.de/cdn-cgi/challenge-platform/h/g/flow/ov1/895412227:1700717289:Gk76rXER2xrxxJGpnwDNK4Y69WP1rfG6g5A6SASzdao/82a756e3fc3b91db/c92e55efd1b647c
Requested by
Host: goeuro.de
URL: http://goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=82a756e3fc3b91db
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
f1374137f76193d71e32c5c555100e96e16b96c517acc71033e68b46646d5ea3

Request headers

Referer
http://goeuro.de/
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36
CF-Challenge
c92e55efd1b647c
Content-type
application/x-www-form-urlencoded

Response headers

Date
Thu, 23 Nov 2023 06:26:14 GMT
Content-Encoding
gzip
Server
cloudflare
Transfer-Encoding
chunked
Content-Type
text/plain; charset=UTF-8
Connection
keep-alive
CF-RAY
82a756e55ef75d46-FRA
alt-svc
h3=":443"; ma=86400
cf-chl-gen
wtj9wXZ2HXdAK+oYP1T+6vdm++U1f6lQcTLeqMdTg3yXK/3Ub0WDs0rsDMlNtCUB$JgJ+Rm3MIN+OBTUWred88Q==
normal
challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/kfw2y/0x4AAAAAAADnPIDROrmt1Wwj/light/ Frame CA8C
0
0
Document
General
Full URL
https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/kfw2y/0x4AAAAAAADnPIDROrmt1Wwj/light/normal
Requested by
Host: challenges.cloudflare.com
URL: https://challenges.cloudflare.com/turnstile/v0/g/9914b343/api.js?onload=FAIg1&render=explicit
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2606:4700::6811:3b8 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
Content-Security-Policy frame-src https://challenges.cloudflare.com/ blob:; base-uri 'self'

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-ray
82a756e5ccf44d70-FRA
content-encoding
br
content-security-policy
frame-src https://challenges.cloudflare.com/ blob:; base-uri 'self'
content-type
text/html; charset=UTF-8
cross-origin-embedder-policy
require-corp
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
cross-origin
date
Thu, 23 Nov 2023 06:26:14 GMT
document-policy
js-profiling
origin-agent-cluster
?1
permissions-policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
referrer-policy
same-origin
server
cloudflare
c92e55efd1b647c
goeuro.de/cdn-cgi/challenge-platform/h/g/flow/ov1/895412227:1700717289:Gk76rXER2xrxxJGpnwDNK4Y69WP1rfG6g5A6SASzdao/82a756e3fc3b91db/
2 KB
3 KB
XHR
General
Full URL
http://goeuro.de/cdn-cgi/challenge-platform/h/g/flow/ov1/895412227:1700717289:Gk76rXER2xrxxJGpnwDNK4Y69WP1rfG6g5A6SASzdao/82a756e3fc3b91db/c92e55efd1b647c
Requested by
Host: goeuro.de
URL: http://goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=82a756e3fc3b91db
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
06409d8d0af173ed76d8b48459c75cb76541c813d1d8423ec91fe203ab0b1490

Request headers

Referer
http://goeuro.de/
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36
CF-Challenge
c92e55efd1b647c
Content-type
application/x-www-form-urlencoded

Response headers

cf-chl-out
RbLEHW7IH5GXFhyJmkxUJIyjAnm4fx2e7VwphbpA9qMRtmwQJjU7LnyLi1dOv2EP/3HwHNsDlJvROkF/qJy7rsEEH/+fYQTvOKImBRdSVfA=$bJlqBtfpgt9cTCQXPB3Z8A==
cf-chl-out-s
OBJknjciYmY0cSkdPsliYgPXdYGjB6hwlMG4RDf3VxXhI5QWvXTIpM6s1eNv45Vvv6QFaK6yEGG/ZiKVwcTXW0FEuCMqTIrP+KPLxCvsp+3MlqlN3DlWakv3Yhxgz+fc9CoRBpJXzXOKi5R7T9xs77MNTrpO9kHCwcYux/6EEcdKKb71Y9EPrDiNOGC0B2JmLvp6qCVHEVIFbxVK0STIKOmFfxCfjOCV2EORzqOkfjcdgw45a7C87k3cv+Iiw5aM$YO9sClBctdxPcm7u/vEZ0Q==
Date
Thu, 23 Nov 2023 06:26:14 GMT
Content-Encoding
gzip
Server
cloudflare
Transfer-Encoding
chunked
Content-Type
text/html; charset=UTF-8
Connection
keep-alive
CF-RAY
82a756e738e85d46-FRA
alt-svc
h3=":443"; ma=86400
Primary Request /
goeuro.de/
5 KB
0
Document
General
Full URL
http://goeuro.de/
Requested by
Host: goeuro.de
URL: http://goeuro.de/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=82a756e3fc3b91db
Protocol
HTTP/1.1
Server
2606:4700:4400::ac40:92b0 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
X-Frame-Options SAMEORIGIN

Request headers

Referer
http://goeuro.de/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.159 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

CF-RAY
82a7570d99665d46-FRA
Cache-Control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection
close
Content-Encoding
gzip
Content-Type
text/html; charset=UTF-8
Cross-Origin-Embedder-Policy
require-corp
Cross-Origin-Opener-Policy
same-origin
Cross-Origin-Resource-Policy
same-origin
Date
Thu, 23 Nov 2023 06:26:20 GMT
Expires
Thu, 01 Jan 1970 00:00:01 GMT
Origin-Agent-Cluster
?1
Permissions-Policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
Referrer-Policy
same-origin
Server
cloudflare
Transfer-Encoding
chunked
Vary
Accept-Encoding
X-Frame-Options
SAMEORIGIN
alt-svc
h3=":443"; ma=86400
cf-mitigated
challenge
challenges.css
goeuro.de/cdn-cgi/styles/
0
0

Failed requests

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

Domain
goeuro.de
URL
http://goeuro.de/cdn-cgi/styles/challenges.css

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.

6 Cookies

Domain/Path Name / Value
goeuro.de/ Name: __cflb
Value: 0H28uu4Zwq5kfu5J8d1tUYfBcWX35yf9C2qyXri9D2u
.goeuro.de/ Name: __cf_bm
Value: vrNDEhVsQVN8ev_6xoGiEp5Z35qpFmeopIyjJFh9adc-1700720774-0-AeRSACrcrHGqdDBJZ4uFcjalVlWP1mcFXAM1cK07eHqOfxEBVcUWH0knrjT3bHFvjvK+7uLBnNKIEGz5ERtqFlc=
.goeuro.de/ Name: _cfuvid
Value: gbZnSdTA3FNF7TdUQQGnExDcsdBYLbkRJxM2VjAzqOE-1700720774097-0-604800000
.omio.com/ Name: __cf_bm
Value: .lGwq_F1CYa4U0qqvIO14s8gPi1.fGvLRyJf6pPYF58-1700720774-0-AbkdMa5t8fa0MrJe3zj/CswxCBLLymmD14OsXNQ3jGcVHWqD1Jf7u5snbTOj1wrSe9enyPAxMZ7vBuOpsBGLCYrIpn8IPmUrmn7vnR04oxz5
.omio.com/ Name: _cfuvid
Value: F9o4Y.Fg6DYmKVXwOb9W7kXwQv062YqS8Iv0Ozz770Q-1700720774337-0-604800000
goeuro.de/ Name: cf_chl_rc_m
Value: 1

10 Console Messages

Source Level URL
Text
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'browsing-topics'.
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
network error URL: http://goeuro.de/
Message:
Failed to load resource: the server responded with a status of 403 (Forbidden)
other error URL: http://goeuro.de/
Message:
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead. See https://www.w3.org/TR/powerful-features/#potentially-trustworthy-origin and https://html.spec.whatwg.org/#the-cross-origin-opener-policy-header.
other warning URL: http://goeuro.de/
Message:
The page requested an origin-keyed agent cluster using the Origin-Agent-Cluster header, but could not be origin-keyed since the origin 'http://goeuro.de' had previously been placed in a site-keyed agent cluster. Update your headers to uniformly request origin-keying for all pages on the origin.
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'browsing-topics'.
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
network error URL: http://goeuro.de/
Message:
Failed to load resource: the server responded with a status of 403 (Forbidden)
other error URL: http://goeuro.de/
Message:
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead. See https://www.w3.org/TR/powerful-features/#potentially-trustworthy-origin and https://html.spec.whatwg.org/#the-cross-origin-opener-policy-header.
other warning URL: http://goeuro.de/
Message:
The page requested an origin-keyed agent cluster using the Origin-Agent-Cluster header, but could not be origin-keyed since the origin 'http://goeuro.de' had previously been placed in a site-keyed agent cluster. Update your headers to uniformly request origin-keying for all pages on the origin.

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-Frame-Options SAMEORIGIN