Submitted URL: http://b3.blackstonecourses.com/
Effective URL: https://b3.blackstonecourses.com/
Submission: On September 05 via manual from US — Scanned from CA

Summary

This website contacted 2 IPs in 1 countries across 1 domains to perform 13 HTTP transactions. The main IP is 82.197.64.55, located in Germany and belongs to NL-811-40021, US. The main domain is b3.blackstonecourses.com.
TLS certificate: Issued by R11 on September 5th 2024. Valid for: 3 months.
This is the only time b3.blackstonecourses.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
13 82.197.64.55 40021 (NL-811-40021)
13 2
Apex Domain
Subdomains
Transfer
13 blackstonecourses.com
b3.blackstonecourses.com
1 MB
13 1
Domain Requested by
13 b3.blackstonecourses.com b3.blackstonecourses.com
13 1

This site contains no links.

Subject Issuer Validity Valid
mail.b3.blackstonecourses.com
R11
2024-09-05 -
2024-12-04
3 months crt.sh

This page contains 1 frames:

Primary Page: https://b3.blackstonecourses.com/
Frame ID: 44E406129A9D672276E1259AB7512FB4
Requests: 15 HTTP requests in this frame

Screenshot

Page Title

mailcow UI

Page URL History Show full URLs

  1. http://b3.blackstonecourses.com/ HTTP 307
    https://b3.blackstonecourses.com/ Page URL

Page Statistics

13
Requests

0 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

2
IPs

1
Countries

1123 kB
Transfer

2448 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. http://b3.blackstonecourses.com/ HTTP 307
    https://b3.blackstonecourses.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

13 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
b3.blackstonecourses.com/
Redirect Chain
  • http://b3.blackstonecourses.com/
  • https://b3.blackstonecourses.com/
26 KB
7 KB
Document
General
Full URL
https://b3.blackstonecourses.com/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
cc3ecda6381168d1fba23a0d52a37dc7a3b4003e278bf27d957a185b314c7e9a
Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 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/128.0.0.0 Safari/537.36

Response headers

cache-control
no-store, no-cache, must-revalidate
content-encoding
gzip
content-type
text/html; charset=utf-8
date
Thu, 05 Sep 2024 14:18:35 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
pragma
no-cache
referrer-policy
strict-origin
server
nginx
strict-transport-security
max-age=15768000;
vary
Accept-Encoding
x-content-type-options
nosniff
x-download-options
noopen
x-frame-options
SAMEORIGIN
x-permitted-cross-domain-policies
none
x-robots-tag
none
x-xss-protection
1; mode=block

Redirect headers

Location
https://b3.blackstonecourses.com/
Non-Authoritative-Reason
HttpsUpgrades
e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
b3.blackstonecourses.com/cache/
818 KB
172 KB
Stylesheet
General
Full URL
https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
56ab678aa3390991067a1f4fa6ed3cfb0ea36ac8c17ac7d7f0794724481ddc17
Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
strict-transport-security
max-age=15768000;
x-content-type-options
nosniff
content-encoding
gzip
x-permitted-cross-domain-policies
none
x-xss-protection
1; mode=block
pragma
cache
referrer-policy
strict-origin
server
nginx
x-download-options
noopen
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
cache-control
max-age=31536000
x-robots-tag
none
expires
Fri, 05 Sep 2025 14:18:35 GMT
cow_mailcow.svg
b3.blackstonecourses.com/img/
14 KB
5 KB
Image
General
Full URL
https://b3.blackstonecourses.com/img/cow_mailcow.svg
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
86a8eab3a89e2fa7c65a068a93ed9b94536d58d77d8a931665d101f94bd70786

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
content-encoding
gzip
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
W/"66b2c53c-38d8"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
max-age=315360000, public
expires
Thu, 31 Dec 2037 23:55:55 GMT
e595c6fb15432764e19ab4fd52f7c67eca5bfbf4.js
b3.blackstonecourses.com/cache/
902 KB
256 KB
Script
General
Full URL
https://b3.blackstonecourses.com/cache/e595c6fb15432764e19ab4fd52f7c67eca5bfbf4.js
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
2381139ba2eb74be91394d53cf9999f7c2639362c853b428f99b00557edc67a6
Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
strict-transport-security
max-age=15768000;
x-content-type-options
nosniff
content-encoding
gzip
x-permitted-cross-domain-policies
none
x-xss-protection
1; mode=block
pragma
cache
referrer-policy
strict-origin
server
nginx
x-download-options
noopen
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
content-type
application/javascript; charset=utf-8
cache-control
max-age=31536000
x-robots-tag
none
expires
Fri, 05 Sep 2025 14:18:35 GMT
cow_mailcow.svg
b3.blackstonecourses.com/img/
14 KB
5 KB
Image
General
Full URL
https://b3.blackstonecourses.com/img/cow_mailcow.svg
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
86a8eab3a89e2fa7c65a068a93ed9b94536d58d77d8a931665d101f94bd70786

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
content-encoding
gzip
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
W/"66b2c53c-38d8"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
max-age=315360000, public
expires
Thu, 31 Dec 2037 23:55:55 GMT
truncated
/
108 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
8f27b2160255b0a3bbe960f0af6a1772a8514e2b3ba0acbeea1e622ebb5f3e4a

Request headers

Referer
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

Content-Type
image/svg+xml
truncated
/
538 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
825310f9bcc8892559317bfc87fc28d5d7bad06c02d562b5740aafcf4b040803

Request headers

Referer
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

Content-Type
image/svg+xml
bootstrap-icons.woff2
b3.blackstonecourses.com/fonts/
100 KB
100 KB
Font
General
Full URL
https://b3.blackstonecourses.com/fonts/bootstrap-icons.woff2?524846017b983fc8ded9325d94ed40f3
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
c874e14c63db86c4c5318c77cb557fce7036645edc7d690dcc1d23b389631b13

Request headers

Referer
https://b3.blackstonecourses.com/
Origin
https://b3.blackstonecourses.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
"66b2c53c-19088"
content-type
font/woff2
cache-control
max-age=315360000, public
accept-ranges
bytes
content-length
102536
expires
Thu, 31 Dec 2037 23:55:55 GMT
noto-sans-v12-latin_greek_cyrillic-regular.woff2
b3.blackstonecourses.com/fonts/
153 KB
154 KB
Font
General
Full URL
https://b3.blackstonecourses.com/fonts/noto-sans-v12-latin_greek_cyrillic-regular.woff2
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
16bb3d8fb5c371c9e4fa6b5f313c0a5e2edd911c0ce6d0f9c3cee01e9560a2b3

Request headers

Referer
https://b3.blackstonecourses.com/
Origin
https://b3.blackstonecourses.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
"66b2c53c-264d4"
content-type
font/woff2
cache-control
max-age=315360000, public
accept-ranges
bytes
content-length
156884
expires
Thu, 31 Dec 2037 23:55:55 GMT
noto-sans-v12-latin_greek_cyrillic-700.woff2
b3.blackstonecourses.com/fonts/
152 KB
152 KB
Font
General
Full URL
https://b3.blackstonecourses.com/fonts/noto-sans-v12-latin_greek_cyrillic-700.woff2
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
6a2f4003a98a3d8b367702823291c5e43078623288deff831d9d83c8f2db9b16

Request headers

Referer
https://b3.blackstonecourses.com/
Origin
https://b3.blackstonecourses.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
"66b2c53c-25e10"
content-type
font/woff2
cache-control
max-age=315360000, public
accept-ranges
bytes
content-length
155152
expires
Thu, 31 Dec 2037 23:55:55 GMT
noto-sans-v12-latin_greek_cyrillic-italic.woff2
b3.blackstonecourses.com/fonts/
116 KB
117 KB
Font
General
Full URL
https://b3.blackstonecourses.com/fonts/noto-sans-v12-latin_greek_cyrillic-italic.woff2
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
a954c0a79c10d3b1bc92da8061a74c4bf99ade39a5f0b385de63e14e569a23db

Request headers

Referer
https://b3.blackstonecourses.com/
Origin
https://b3.blackstonecourses.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
"66b2c53c-1d1d8"
content-type
font/woff2
cache-control
max-age=315360000, public
accept-ranges
bytes
content-length
119256
expires
Thu, 31 Dec 2037 23:55:55 GMT
noto-sans-v12-latin_greek_cyrillic-700italic.woff2
b3.blackstonecourses.com/fonts/
122 KB
123 KB
Font
General
Full URL
https://b3.blackstonecourses.com/fonts/noto-sans-v12-latin_greek_cyrillic-700italic.woff2
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e9d7abaa5bdece3e1bd297a0acd7d21041e36c05.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
0bc6089e574f4e86713e5c4911a09ed7766cdf6b6a23991a7d024ea3df16754d

Request headers

Referer
https://b3.blackstonecourses.com/
Origin
https://b3.blackstonecourses.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
etag
"66b2c53c-1e93c"
content-type
font/woff2
cache-control
max-age=315360000, public
accept-ranges
bytes
content-length
125244
expires
Thu, 31 Dec 2037 23:55:55 GMT
html
b3.blackstonecourses.com/api/v1/get/passwordpolicy/
0
539 B
XHR
General
Full URL
https://b3.blackstonecourses.com/api/v1/get/passwordpolicy/html
Requested by
Host: b3.blackstonecourses.com
URL: https://b3.blackstonecourses.com/cache/e595c6fb15432764e19ab4fd52f7c67eca5bfbf4.js
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Accept
*/*
Referer
https://b3.blackstonecourses.com/
X-Requested-With
XMLHttpRequest
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:35 GMT
strict-transport-security
max-age=15768000;
x-content-type-options
nosniff
content-encoding
gzip
x-permitted-cross-domain-policies
none
x-xss-protection
1; mode=block
pragma
no-cache
referrer-policy
strict-origin
server
nginx
x-download-options
noopen
vary
Accept-Encoding
access-control-allow-methods
GET, POST, PUT, DELETE, OPTION, OPTIONS
content-type
application/json
access-control-allow-origin
mail.b3.blackstonecourses.com
cache-control
no-store, no-cache, must-revalidate
x-frame-options
SAMEORIGIN
x-robots-tag
none
access-control-allow-headers
Accept, Content-Type, X-Api-Key, Origin
expires
Thu, 19 Nov 1981 08:52:00 GMT
favicon.png
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15 KB
15 KB
Other
General
Full URL
https://b3.blackstonecourses.com/favicon.png
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:36 GMT
strict-transport-security
max-age=15768000;
x-content-type-options
nosniff
referrer-policy
strict-origin
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
x-permitted-cross-domain-policies
none
etag
"66b2c53c-3c44"
x-download-options
noopen
x-frame-options
SAMEORIGIN
content-type
image/png
accept-ranges
bytes
x-robots-tag
none
content-length
15428
x-xss-protection
1; mode=block
favicon.png
b3.blackstonecourses.com/
15 KB
15 KB
Other
General
Full URL
https://b3.blackstonecourses.com/favicon.png
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
82.197.64.55 , Germany, ASN40021 (NL-811-40021, US),
Reverse DNS
mail.b3.blackstonecourses.com
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15768000;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://b3.blackstonecourses.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 05 Sep 2024 14:18:36 GMT
strict-transport-security
max-age=15768000;
x-content-type-options
nosniff
referrer-policy
strict-origin
last-modified
Wed, 07 Aug 2024 00:52:12 GMT
server
nginx
x-permitted-cross-domain-policies
none
etag
"66b2c53c-3c44"
x-download-options
noopen
x-frame-options
SAMEORIGIN
content-type
image/png
accept-ranges
bytes
x-robots-tag
none
content-length
15428
x-xss-protection
1; mode=block

Verdicts & Comments Add Verdict or Comment

23 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.

function| escapeHtml function| unescapeHtml function| addTag function| copyToClipboard function| $ function| jQuery number| uidEvent object| bootstrap object| noUiSlider function| DataTable function| Chart object| ChartDataLabels function| markdownit object| lang_footer object| lang_acl object| lang_tfa object| lang_fido2 number| docker_timeout object| mailcow_info function| setLang function| arrayBufferToBase64 function| recursiveBase64StrToArrayBuffer function| mailcow_alert_box

1 Cookies

Domain/Path Name / Value
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