Submitted URL: https://www.posta.tyniste.cz/
Effective URL: https://webmail.web4u.cz/
Submission: On January 02 via automatic, source certstream-suspicious — Scanned from DE

Summary

This website contacted 1 IPs in 1 countries across 2 domains to perform 14 HTTP transactions. The main IP is 2001:1568::29, located in Czech Republic and belongs to WEB4U, CZ. The main domain is webmail.web4u.cz.
TLS certificate: Issued by R3 on November 11th 2023. Valid for: 3 months.
This is the only time webmail.web4u.cz was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 81.91.86.11 39790 (WEB4U)
1 15 2001:1568::29 39790 (WEB4U)
14 1
Apex Domain
Subdomains
Transfer
15 web4u.cz
webmail.web4u.cz
330 KB
1 tyniste.cz
www.posta.tyniste.cz
132 B
14 2
Domain Requested by
15 webmail.web4u.cz 1 redirects webmail.web4u.cz
1 www.posta.tyniste.cz 1 redirects
14 2

This site contains no links.

Subject Issuer Validity Valid
webmail.web4u.cz
R3
2023-11-11 -
2024-02-09
3 months crt.sh

This page contains 1 frames:

Primary Page: https://webmail.web4u.cz/
Frame ID: 40FFA512B06089B8F15AAA8C5A4D7B03
Requests: 14 HTTP requests in this frame

Screenshot

Page Title

Webmail :: Vítejte v Webmail

Page URL History Show full URLs

  1. https://www.posta.tyniste.cz/ HTTP 302
    https://webmail.web4u.cz/roundcube/ HTTP 301
    https://webmail.web4u.cz/ Page URL

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
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Overall confidence: 100%
Detected patterns
  • jquery-ui.*\.js

Page Statistics

14
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

2
Subdomains

1
IPs

1
Countries

330 kB
Transfer

1067 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://www.posta.tyniste.cz/ HTTP 302
    https://webmail.web4u.cz/roundcube/ HTTP 301
    https://webmail.web4u.cz/ 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 /
webmail.web4u.cz/
Redirect Chain
  • https://www.posta.tyniste.cz/
  • https://webmail.web4u.cz/roundcube/
  • https://webmail.web4u.cz/
5 KB
3 KB
Document
General
Full URL
https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
310f102afe56a52fb51948bf4b52322039e649bb2042c0c5410e2955996eb586
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/120.0.6099.129 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

cache-control
private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0
content-encoding
gzip
content-language
cs
content-type
text/html; charset=UTF-8
date
Tue, 02 Jan 2024 08:41:26 GMT
expires
Tue, 02 Jan 2024 08:41:26 GMT
last-modified
Tue, 02 Jan 2024 08:41:26 GMT
pragma
no-cache
server
openresty
vary
Accept-Encoding
x-frame-options
sameorigin

Redirect headers

content-length
315
content-type
text/html; charset=iso-8859-1
date
Tue, 02 Jan 2024 08:41:26 GMT
location
https://webmail.web4u.cz
server
openresty
bootstrap.min.css
webmail.web4u.cz/skins/elastic/deps/
157 KB
24 KB
Stylesheet
General
Full URL
https://webmail.web4u.cz/skins/elastic/deps/bootstrap.min.css?s=1699175485
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
3cb5b7ae5053d743996378c35733560214d3d896ade5c0de0d8b13a97f43039e

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:25 GMT
server
openresty
etag
"2725b-609641f31c940-gzip"
vary
Accept-Encoding
content-type
text/css
accept-ranges
bytes
content-length
23877
styles.min.css
webmail.web4u.cz/skins/elastic/styles/
117 KB
22 KB
Stylesheet
General
Full URL
https://webmail.web4u.cz/skins/elastic/styles/styles.min.css?s=1699175466
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
31df675dd62d43348dfd9b4cf6e00c650496da51749b126eea051d195879c3f3

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:06 GMT
server
openresty
etag
"1d320-609641e0fde80-gzip"
vary
Accept-Encoding
content-type
text/css
accept-ranges
bytes
content-length
22204
jquery-ui.min.css
webmail.web4u.cz/plugins/jqueryui/themes/elastic/
29 KB
7 KB
Stylesheet
General
Full URL
https://webmail.web4u.cz/plugins/jqueryui/themes/elastic/jquery-ui.min.css?s=1699175465
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
b3805c77dc478fd0e6a66140c13cc9ab7d26832c136f48aa418490035d7cb095

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:05 GMT
server
openresty
etag
"72ff-609641e009c40-gzip"
vary
Accept-Encoding
content-type
text/css
accept-ranges
bytes
content-length
7419
jquery.min.js
webmail.web4u.cz/program/js/
89 KB
31 KB
Script
General
Full URL
https://webmail.web4u.cz/program/js/jquery.min.js?s=1699175471
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
5641ed21773230a8110279658abac57bb5b4abc7bf4091946c5e61e8f0021f55

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:11 GMT
server
openresty
etag
"1632e-609641e5c29c0-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
31705
common.min.js
webmail.web4u.cz/program/js/
12 KB
5 KB
Script
General
Full URL
https://webmail.web4u.cz/program/js/common.min.js?s=1699175465
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
08bf7a712ce3944d218f618ee6fa4131bd97bcc1891d1f9b7bd2ba116baf27fa

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:05 GMT
server
openresty
etag
"31f5-609641e009c40-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
4855
app.min.js
webmail.web4u.cz/program/js/
170 KB
48 KB
Script
General
Full URL
https://webmail.web4u.cz/program/js/app.min.js?s=1699175465
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
4dcff48fc4abbddf5479b617713c157e0f03860a19f4e3dc42264c079b9781bf

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:05 GMT
server
openresty
etag
"2a83d-609641e009c40-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
48676
jstz.min.js
webmail.web4u.cz/program/js/
14 KB
5 KB
Script
General
Full URL
https://webmail.web4u.cz/program/js/jstz.min.js?s=1699175471
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
716ece8deb8412f7ec95ab395c92f6515bb8d8b792fd7480c014cdc6f063452a

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:11 GMT
server
openresty
etag
"360b-609641e5c29c0-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
5013
jquery-ui.min.js
webmail.web4u.cz/plugins/jqueryui/js/
254 KB
68 KB
Script
General
Full URL
https://webmail.web4u.cz/plugins/jqueryui/js/jquery-ui.min.js?s=1699175465
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
59a4c9a75c48cf979e66c5641230bda0e15dfff292666e56ffb52a5a96d78834

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:05 GMT
server
openresty
etag
"3f6c0-609641e009c40-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
jquery.ui.datepicker-cs.js
webmail.web4u.cz/plugins/jqueryui/js/i18n/
1 KB
810 B
Script
General
Full URL
https://webmail.web4u.cz/plugins/jqueryui/js/i18n/jquery.ui.datepicker-cs.js?s=1699175465
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
b0c2b58c649d61b1b8244a9fcc1a7e531abb68d0398884d977818ac8a2af68d0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:05 GMT
server
openresty
etag
"413-609641e009c40-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
617
logo.svg
webmail.web4u.cz/skins/elastic/images/
5 KB
2 KB
Image
General
Full URL
https://webmail.web4u.cz/skins/elastic/images/logo.svg?s=1699175466
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
61f0e6c99b7183b82a6b117836bd2bf9969d85d3a53eb625ee12f261ffa27940

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Thu, 26 Apr 2018 09:31:47 GMT
server
openresty
etag
"143a-56abd0e6de6c0-gzip"
vary
Accept-Encoding
content-type
image/svg+xml
accept-ranges
bytes
content-length
1871
bootstrap.bundle.min.js
webmail.web4u.cz/skins/elastic/deps/
82 KB
21 KB
Script
General
Full URL
https://webmail.web4u.cz/skins/elastic/deps/bootstrap.bundle.min.js?s=1699175485
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
19b51730c10082760e6d9b82c1342e60855f98d2666c64e4eb758d26b1a0c840

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:25 GMT
server
openresty
etag
"14888-609641f31c940-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
21767
ui.min.js
webmail.web4u.cz/skins/elastic/
59 KB
19 KB
Script
General
Full URL
https://webmail.web4u.cz/skins/elastic/ui.min.js?s=1699175466
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
5a6a4d9f6477096170f94cd9a9ed3047c840b537a55a7942f3aed2a34dbbe426

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://webmail.web4u.cz/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:06 GMT
server
openresty
etag
"ed2b-609641e0fde80-gzip"
vary
Accept-Encoding
content-type
application/javascript
accept-ranges
bytes
content-length
19424
fa-solid-900.woff2
webmail.web4u.cz/skins/elastic/fonts/
74 KB
74 KB
Font
General
Full URL
https://webmail.web4u.cz/skins/elastic/fonts/fa-solid-900.woff2
Requested by
Host: webmail.web4u.cz
URL: https://webmail.web4u.cz/skins/elastic/styles/styles.min.css?s=1699175466
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2001:1568::29 , Czech Republic, ASN39790 (WEB4U, CZ),
Reverse DNS
Software
openresty /
Resource Hash
cd398be1a91817126cef10224738e624358edf6f08043abad7e60c1aaeccc8d0

Request headers

Referer
https://webmail.web4u.cz/skins/elastic/styles/styles.min.css?s=1699175466
Origin
https://webmail.web4u.cz
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/120.0.6099.129 Safari/537.36

Response headers

date
Tue, 02 Jan 2024 08:41:26 GMT
content-encoding
gzip
last-modified
Sun, 05 Nov 2023 09:11:06 GMT
server
openresty
etag
"126b0-609641e0fde80-gzip"
vary
Accept-Encoding
content-type
font/woff2
accept-ranges
bytes

Verdicts & Comments Add Verdict or Comment

27 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| documentPictureInPicture function| $ function| jQuery number| CONTROL_KEY number| SHIFT_KEY number| CONTROL_SHIFT_KEY function| roundcube_browser object| rcube_event function| rcube_event_engine function| rcube_check_email function| rcube_clone_object function| urlencode function| rcube_find_object function| rcube_mouse_is_over function| setCookie function| getCookie object| bw function| rcube_parse_query object| Base64 object| pattern function| rcube_webmail object| jstz object| rcmail object| bootstrap function| rcube_elastic_ui function| __newInst object| UI

1 Cookies

Domain/Path Name / Value
webmail.web4u.cz/ Name: roundcube_sessid
Value: c12f7p4i3putv5c6vqrssrg5ea

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