microsoft-productivity-score.immersivelearning.online
Open in
urlscan Pro
2600:140b:1a00:4::17c1:b897
Public Scan
Submission: On November 25 via api from JP — Scanned from JP
Summary
TLS certificate: Issued by R3 on November 24th 2022. Valid for: 3 months.
This is the only time microsoft-productivity-score.immersivelearning.online was scanned on urlscan.io!
urlscan.io Verdict: No classification
Domain & IP information
IP Address | AS Autonomous System | ||
---|---|---|---|
38 | 2600:140b:1a0... 2600:140b:1a00:4::17c1:b897 | 20940 (AKAMAI-ASN1) (AKAMAI-ASN1) | |
2 | 117.18.232.200 117.18.232.200 | 15133 (EDGECAST) (EDGECAST) | |
2 | 40.79.170.242 40.79.170.242 | 8075 (MICROSOFT...) (MICROSOFT-CORP-MSN-AS-BLOCK) | |
43 | 4 |
ASN20940 (AKAMAI-ASN1, NL)
microsoft-productivity-score.immersivelearning.online |
ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)
dc.services.visualstudio.com |
Apex Domain Subdomains |
Transfer | |
---|---|---|
38 |
immersivelearning.online
microsoft-productivity-score.immersivelearning.online |
5 MB |
2 |
visualstudio.com
dc.services.visualstudio.com — Cisco Umbrella Rank: 725 |
281 B |
1 |
msecnd.net
az416426.vo.msecnd.net — Cisco Umbrella Rank: 2035 |
47 KB |
1 |
aspnetcdn.com
ajax.aspnetcdn.com — Cisco Umbrella Rank: 1114 |
39 KB |
43 | 4 |
Domain | Requested by | |
---|---|---|
38 | microsoft-productivity-score.immersivelearning.online |
microsoft-productivity-score.immersivelearning.online
|
2 | dc.services.visualstudio.com |
az416426.vo.msecnd.net
|
1 | az416426.vo.msecnd.net |
microsoft-productivity-score.immersivelearning.online
|
1 | ajax.aspnetcdn.com |
microsoft-productivity-score.immersivelearning.online
|
43 | 4 |
This site contains no links.
Subject Issuer | Validity | Valid | |
---|---|---|---|
cert00077-azurecdn.akamaized.net R3 |
2022-11-24 - 2023-02-22 |
3 months | crt.sh |
*.vo.msecnd.net DigiCert SHA2 Secure Server CA |
2022-07-11 - 2023-07-11 |
a year | crt.sh |
in.applicationinsights.azure.com Microsoft Azure TLS Issuing CA 05 |
2022-09-13 - 2023-09-08 |
a year | crt.sh |
This page contains 2 frames:
Primary Page:
https://microsoft-productivity-score.immersivelearning.online/
Frame ID: 05A4AF0BFAA63DB36612BF320E1F756E
Requests: 9 HTTP requests in this frame
Frame:
https://microsoft-productivity-score.immersivelearning.online/simulation/index.html
Frame ID: E772D833173A6D18F6A3343FF0D6F850
Requests: 34 HTTP requests in this frame
0 Outgoing links
These are links going to different origins than the main page.
Redirected requests
There were HTTP redirect chains for the following requests:
43 HTTP transactions
Method Protocol |
Resource Path |
Size x-fer |
Type MIME-Type |
||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GET H2 |
Primary Request
/
microsoft-productivity-score.immersivelearning.online/ |
38 KB 39 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
dark_theme.css
microsoft-productivity-score.immersivelearning.online/stylesheets/ |
3 KB 3 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
light_theme.css
microsoft-productivity-score.immersivelearning.online/stylesheets/ |
3 KB 3 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
jquery-3.4.1.min.js
ajax.aspnetcdn.com/ajax/jQuery/ |
86 KB 39 KB |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
ogLabGuide.js
microsoft-productivity-score.immersivelearning.online/javascripts/ |
4 KB 5 KB |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
ai.2.min.js
az416426.vo.msecnd.net/scripts/b/ |
118 KB 47 KB |
Script
text/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
index.html
microsoft-productivity-score.immersivelearning.online/simulation/ Frame E772 |
7 KB 8 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
Microsoft-logo_rgb_c-white.png
microsoft-productivity-score.immersivelearning.online/images/ |
12 KB 13 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
double_left_chevron.png
microsoft-productivity-score.immersivelearning.online/images/ |
10 KB 10 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
loader.gif
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
7 KB 8 KB |
Image
image/gif |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
CPXHRLoader.js
microsoft-productivity-score.immersivelearning.online/simulation/assets/js/ Frame E772 |
9 KB 9 KB |
Script
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
CPLibraryAll.css
microsoft-productivity-score.immersivelearning.online/simulation/assets/css/ Frame E772 |
14 KB 14 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
jquery-3.3.1.min.js
microsoft-productivity-score.immersivelearning.online/simulation/assets/js/ Frame E772 |
85 KB 86 KB |
XHR
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
CPM.js
microsoft-productivity-score.immersivelearning.online/simulation/assets/js/ Frame E772 |
2 MB 2 MB |
XHR
application/javascript |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
OPTIONS H2 |
track
dc.services.visualstudio.com/v2/ Frame |
0 0 |
Preflight
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
POST H2 |
track
dc.services.visualstudio.com/v2/ |
96 B 281 B |
XHR
application/json |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
imgmd.json
microsoft-productivity-score.immersivelearning.online/simulation/dr/ Frame E772 |
3 KB 4 KB |
XHR
application/json |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
Mouse.mp3
microsoft-productivity-score.immersivelearning.online/simulation/ar/ Frame E772 |
1 KB 2 KB |
XHR
audio/mpeg |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
img20.json
microsoft-productivity-score.immersivelearning.online/simulation/dr/ Frame E772 |
41 KB 0 |
XHR
application/json |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
img11.json
microsoft-productivity-score.immersivelearning.online/simulation/dr/ Frame E772 |
3 MB 3 MB |
XHR
application/json |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
Play_icon.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
4 KB 5 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
ccClose.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
360 B 805 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
Pause2x.gif
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
19 KB 20 KB |
Image
image/gif |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
Play2x.gif
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
20 KB 20 KB |
Image
image/gif |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
expand_icon.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
476 B 921 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
gesturemobileicon@2x.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
2 KB 2 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
gesturemobilelandscape.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
4 KB 5 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
gesturetabletimage.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
5 KB 5 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
img_trans.gif
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
43 B 486 B |
Image
image/gif |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
placeholder.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
85 B 529 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
blankBookmark.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
97 B 540 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
fullBookmark.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
373 B 818 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
visited.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
547 B 992 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
searchBtnNormal.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
1 KB 2 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
searchBtnSelect.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
1 KB 2 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
expander.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
145 B 589 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
infoClose.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
87 B 530 B |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET |
go.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
0 0 |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
clear.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
1 KB 2 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
expandIcon.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
990 B 1 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
collapseIcon.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
992 B 1 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
moreinfo.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/ Frame E772 |
881 B 1 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
gesturemobileicon.png
microsoft-productivity-score.immersivelearning.online/simulation/assets/htmlimages/ Frame E772 |
1 KB 1 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET DATA |
truncated
/ Frame E772 |
2 MB 0 |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
Failed requests
These URLs were requested, but there was no response received. You will also see them in the list above.
- Domain
- microsoft-productivity-score.immersivelearning.online
- URL
- https://microsoft-productivity-score.immersivelearning.online/simulation/assets/toc/tocIcons/go.png
Verdicts & Comments Add Verdict or Comment
20 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 string| sdkInstance string| aiName object| aisdk string| appInsightsSDK object| appInsights function| $ function| jQuery string| currentTheme string| instructionPanelState undefined| interfaceObj undefined| eventEmitterObj undefined| currentSlide function| expandCollapseInstructionPanel function| switchStyleSheet function| copyGuideText object| e function| n object| Microsoft object| __dynProto$Gbl2 Cookies
Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.
Domain/Path | Expires | Name / Value |
---|---|---|
microsoft-productivity-score.immersivelearning.online/ | Name: ai_user Value: QR+ltX+ZLqrEqzUX7f+1lG|2022-11-25T14:19:23.321Z |
|
microsoft-productivity-score.immersivelearning.online/ | Name: ai_session Value: YIpB+oz0aFIGV/oYpA24UO|1669385964824|1669385964824 |
2 Console Messages
A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.
Source | Level | URL Text |
---|
Indicators
This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.
ajax.aspnetcdn.com
az416426.vo.msecnd.net
dc.services.visualstudio.com
microsoft-productivity-score.immersivelearning.online
microsoft-productivity-score.immersivelearning.online
117.18.232.200
2600:140b:1a00:4::17c1:b897
40.79.170.242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