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rstudio.github.io Open in urlscan Pro
185.199.111.153  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: https://rstudio.github.io.us.cas.ms/
Effective URL: https://rstudio.github.io/
Submission: On August 20 via automatic, source certstream-suspicious
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 1 IPs in 2 countries across 2 domains to perform 3 HTTP transactions. The main IP is 185.199.111.153, located in United States and belongs to FASTLY - Fastly, US. The main domain is rstudio.github.io.
TLS certificate: Issued by DigiCert SHA2 High Assurance Server CA on June 27th 2018. Valid for: 2 years.
This is the only time rstudio.github.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 40.81.127.140 8075 (MICROSOFT...)
3 185.199.111.153 54113 (FASTLY)
3 1
Apex Domain
Subdomains		 Transfer
3 github.io
rstudio.github.io
14 KB
1 cas.ms
rstudio.github.io.us.cas.ms
257 B
3 2
Domain Requested by
3 rstudio.github.io rstudio.github.io
1 rstudio.github.io.us.cas.ms 1 redirects
3 2

This site contains no links.

Subject Issuer Validity Valid
www.github.com
DigiCert SHA2 High Assurance Server CA		 2018-06-27 -
2020-06-20		 2 years crt.sh

This page contains 1 frames:

Primary Page: https://rstudio.github.io/
Frame ID: 98C693491EE663AB1227606F1873904F
Requests: 3 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page URL History Show full URLs

  1. https://rstudio.github.io.us.cas.ms/ HTTP 307
    https://rstudio.github.io/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • html /<!-- Begin Jekyll SEO tag/i
Overall confidence: 100%
Detected patterns
  • headers server /^GitHub\.com$/i
Overall confidence: 100%
Detected patterns
  • headers via /varnish(?: \(Varnish\/([\d.]+)\))?/i
Overall confidence: 100%
Detected patterns
  • headers server /^GitHub\.com$/i
Overall confidence: 100%
Detected patterns
  • headers server /^GitHub\.com$/i

Page Statistics

3
Requests

100 %
HTTPS

0 %
IPv6

2
Domains

2
Subdomains

1
IPs

2
Countries

14 kB
Transfer

74 kB
Size

0
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://rstudio.github.io.us.cas.ms/ HTTP 307
    https://rstudio.github.io/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

3 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
rstudio.github.io/
Redirect Chain
  • https://rstudio.github.io.us.cas.ms/
  • https://rstudio.github.io/
1 KB
994 B 		Document
General
Check archive.org
Download Go to
Full URL
https://rstudio.github.io/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
185.199.111.153 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
GitHub.com /
Resource Hash
16556dd350a4140a61684aabf68acfa0d486205ab4aab8c9eacf34c37c5e04e8

Request headers

:method
GET
:authority
rstudio.github.io
:scheme
https
:path
/
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
sec-fetch-mode
navigate
sec-fetch-user
?1
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
sec-fetch-site
none
accept-encoding
gzip, deflate, br
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1

Response headers

status
200
server
GitHub.com
content-type
text/html; charset=utf-8
last-modified
Tue, 29 Aug 2017 11:36:07 GMT
etag
W/"59a551a7-4d9"
access-control-allow-origin
*
expires
Tue, 20 Aug 2019 21:08:10 GMT
cache-control
max-age=600
content-encoding
gzip
x-proxy-cache
MISS
x-github-request-id
930E:59B8:17F245:229B78:5D5C5EE1
accept-ranges
bytes
date
Tue, 20 Aug 2019 20:58:10 GMT
via
1.1 varnish
age
0
x-served-by
cache-ams21045-AMS
x-cache
MISS
x-cache-hits
0
x-timer
S1566334690.105419,VS0,VE91
vary
Accept-Encoding
x-fastly-request-id
7e478c133c962c6d6b54a7e5fcd909ac950a087c
content-length
619

Redirect headers

Date
Tue, 20 Aug 2019 20:58:09 GMT
Connection
keep-alive
Location
https://rstudio.github.io/
Strict-Transport-Security
max-age=31536000
Content-Length
140
X-MCAS-Request-Id
cc0fe9fa-6d0b-431d-9610-c3c5474f39a3
style.css
rstudio.github.io/assets/css/ 		67 KB
11 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://rstudio.github.io/assets/css/style.css?v=e208314e3d131b6970c7c8a97446f986eb43a11f
Requested by
Host: rstudio.github.io
URL: https://rstudio.github.io/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
185.199.111.153 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
GitHub.com /
Resource Hash
848554a978bc869c3ebe7b52daf264a095bea014076d4fc8386c7704469334ed

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://rstudio.github.io/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

x-fastly-request-id
d7bb8f489e7a88991c8eeeb2e3d2908281f2e7c7
date
Tue, 20 Aug 2019 20:58:10 GMT
content-encoding
gzip
age
0
x-cache
MISS
status
200
content-length
10834
x-served-by
cache-ams21045-AMS
access-control-allow-origin
*
last-modified
Tue, 29 Aug 2017 11:36:07 GMT
server
GitHub.com
x-github-request-id
747A:5692:E9174:14EEF0:5D5C5EE2
x-timer
S1566334690.214381,VS0,VE90
etag
W/"59a551a7-10d0c"
vary
Accept-Encoding
content-type
text/css; charset=utf-8
via
1.1 varnish
expires
Tue, 20 Aug 2019 21:08:10 GMT
cache-control
max-age=600
accept-ranges
bytes
x-proxy-cache
MISS
x-cache-hits
0
anchor.min.js
rstudio.github.io/assets/javascript/anchor-js/ 		5 KB
3 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://rstudio.github.io/assets/javascript/anchor-js/anchor.min.js
Requested by
Host: rstudio.github.io
URL: https://rstudio.github.io/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
185.199.111.153 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
GitHub.com /
Resource Hash
20804ad516e2b883aea5f1eb25f41e6cb8f498119454d9b8d48e25f1658f3e3f

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://rstudio.github.io/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

x-fastly-request-id
706e6b00e3ffa04dece531d7ca8479a8f4a9144f
date
Tue, 20 Aug 2019 20:58:10 GMT
content-encoding
gzip
age
0
x-cache
MISS
status
200
content-length
2462
x-served-by
cache-ams21045-AMS
access-control-allow-origin
*
last-modified
Mon, 28 Aug 2017 18:23:02 GMT
server
GitHub.com
x-github-request-id
F380:7082:19961B:24D2C6:5D5C5EE2
x-timer
S1566334690.214394,VS0,VE95
etag
W/"59a45f86-14d4"
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
via
1.1 varnish
expires
Tue, 20 Aug 2019 21:08:10 GMT
cache-control
max-age=600
accept-ranges
bytes
x-proxy-cache
MISS
x-cache-hits
0

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.

function| AnchorJS object| anchors

0 Cookies

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.

rstudio.github.io
rstudio.github.io.us.cas.ms
185.199.111.153
40.81.127.140
16556dd350a4140a61684aabf68acfa0d486205ab4aab8c9eacf34c37c5e04e8
20804ad516e2b883aea5f1eb25f41e6cb8f498119454d9b8d48e25f1658f3e3f
848554a978bc869c3ebe7b52daf264a095bea014076d4fc8386c7704469334ed