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yihui.org Open in urlscan Pro
76.76.21.21  Public Scan

Go To Rescan Add Verdict Report
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Submission: On April 13 via manual from US
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 1 countries across 3 domains to perform 21 HTTP transactions. The main IP is 76.76.21.21, located in United States and belongs to AMAZON-02, US. The main domain is yihui.org.
TLS certificate: Issued by R3 on February 15th 2021. Valid for: 3 months.
This is the only time yihui.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
14 76.76.21.21 16509 (AMAZON-02)
5 2606:4700::68... 13335 (CLOUDFLAR...)
2 4 13.226.155.25 16509 (AMAZON-02)
21 3
Apex Domain
Subdomains		 Transfer
14 yihui.org
yihui.org
38 KB
5 cloudflare.com
cdnjs.cloudflare.com
20 KB
4 rstudio.com
mathjax.rstudio.com
334 KB
21 3
Domain Requested by
14 yihui.org yihui.org
5 cdnjs.cloudflare.com yihui.org
4 mathjax.rstudio.com 2 redirects yihui.org
21 3
Subject Issuer Validity Valid
yihui.org
R3		 2021-02-15 -
2021-05-16		 3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3		 2020-10-21 -
2021-10-20		 a year crt.sh
mathjax.rstudio.com
Amazon		 2020-12-25 -
2022-01-23		 a year crt.sh

This page contains 1 frames:

Primary Page: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Frame ID: 86CFE0C10F5E6B236851D447D928FAE4
Requests: 21 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Statistics

21
Requests

100 %
HTTPS

33 %
IPv6

3
Domains

3
Subdomains

3
IPs

1
Countries

391 kB
Transfer

456 kB
Size

0
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 14
  • https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-MML-AM_CHTML HTTP 302
  • https://mathjax.rstudio.com/2.7.2/MathJax.js?config=TeX-MML-AM_CHTML
Request Chain 19
  • https://mathjax.rstudio.com/latest/config/TeX-MML-AM_CHTML.js?V=2.7.2 HTTP 302
  • https://mathjax.rstudio.com/2.7.2/config/TeX-MML-AM_CHTML.js?V=2.7.2

21 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
yihui.org/knitr/options/ 		50 KB
17 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e5ab662a4d367ac046debcd5814874e0817b17f141070b49942d7485d8054702
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

:method
GET
:authority
yihui.org
:scheme
https
:path
/knitr/options/?version=1.2.1335&mode=server
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site
none
sec-fetch-mode
navigate
sec-fetch-user
?1
sec-fetch-dest
document
accept-encoding
gzip, deflate, br
accept-language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-type
text/html; charset=utf-8
content-disposition
inline; filename="index.html"
cache-control
public, max-age=0, must-revalidate
access-control-allow-origin
*
etag
W/"e5ab662a4d367ac046debcd5814874e0817b17f141070b49942d7485d8054702"
x-vercel-cache
HIT
age
1639
server
Vercel
x-vercel-id
arn1::brdjb-1618326147340-a8ae43cc4735
strict-transport-security
max-age=63072000
content-encoding
br
github.min.css
cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/ 		872 B
676 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/github.min.css
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
dd833a037a47e1014297d59b494f285c5e4de96ff6ca5bd6d28da0f99e9398b4
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
4860763
cross-origin-resource-policy
cross-origin
alt-svc
h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
285
cf-request-id
096d5a69cd00004aa361125000000001
timing-allow-origin
*
last-modified
Mon, 04 May 2020 16:10:34 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb03e7a-368"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"max_age":604800,"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=Ja9XcyAwhTmJ7Znhofot5nLowrYf8BDSdBFCNumIiRNgUpaFLUrVBXdDe5%2F9dloOP6IpfRN2PBTBgY6DybGGVhyAhz2P6lR55T2jlnGldE8FobqvNflTIoYkvamvOwHbzw%3D%3D"}],"group":"cf-nel"}
content-type
text/css; charset=utf-8
access-control-allow-origin
*
vary
Accept-Encoding
cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
63f593561aac4aa3-FRA
expires
Sun, 03 Apr 2022 15:02:27 GMT
style.css
yihui.org/css/ 		6 KB
2 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://yihui.org/css/style.css
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
22a794109d0893ea9cb5b92258a18322046b93c8779eac7923cd99f69af5fd3e
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
server
Vercel
age
984199
x-vercel-id
arn1::brdjb-1618326147552-791169f7ece1
etag
W/"22a794109d0893ea9cb5b92258a18322046b93c8779eac7923cd99f69af5fd3e"
strict-transport-security
max-age=63072000
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="style.css"
x-vercel-cache
HIT
fonts.css
yihui.org/css/ 		596 B
768 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://yihui.org/css/fonts.css
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
c54cbeafc7d82bd055913705ce223835d9460d8fc3222ba569d2be5ca73f6767
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
477105
x-vercel-id
arn1::brdjb-1618326147552-32e433de3eba
etag
W/"c54cbeafc7d82bd055913705ce223835d9460d8fc3222ba569d2be5ca73f6767"
strict-transport-security
max-age=63072000
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="fonts.css"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
596
custom.css
yihui.org/css/ 		3 KB
1 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://yihui.org/css/custom.css
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
307346985c6fef04c22ac7fa5bb0b54cac0eb4ebffd89cc39d835629dc8c8d03
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
server
Vercel
age
638100
x-vercel-id
arn1::brdjb-1618326147552-5001b199fd24
etag
W/"307346985c6fef04c22ac7fa5bb0b54cac0eb4ebffd89cc39d835629dc8c8d03"
strict-transport-security
max-age=63072000
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="custom.css"
x-vercel-cache
HIT
knit-logo.png
yihui.org/knitr/images/ 		11 KB
11 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://yihui.org/knitr/images/knit-logo.png
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
6da212525c4f5182f124ee61086edc11fa566bc0398aa90281b5a24c9542f229
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
13876
x-vercel-id
arn1::brdjb-1618326147552-5dbf8ab18edd
etag
W/"6da212525c4f5182f124ee61086edc11fa566bc0398aa90281b5a24c9542f229"
strict-transport-security
max-age=63072000
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="knit-logo.png"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
11468
fix-toc.js
yihui.org/js/ 		338 B
487 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/fix-toc.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
df9df236b615322e57ffd7e66057f9ed502be0de9c61fbedfce34027548c81d8
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
984199
x-vercel-id
arn1::brdjb-1618326147552-3e70e66c5bb5
etag
W/"df9df236b615322e57ffd7e66057f9ed502be0de9c61fbedfce34027548c81d8"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="fix-toc.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
338
center-img.js
yihui.org/js/ 		790 B
979 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/center-img.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
39094d9caed7ed0ff0187af9f45b432776bf10d5a0cfc8323e3498932fbaf12a
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
2267714
x-vercel-id
arn1::brdjb-1618326147552-062b0f02b3cb
etag
W/"39094d9caed7ed0ff0187af9f45b432776bf10d5a0cfc8323e3498932fbaf12a"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="center-img.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
790
right-quote.js
yihui.org/js/ 		424 B
581 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/right-quote.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
c072d67ab93d4eb09e37e13808f8fd98d3b4aac2469231cd5ca5a52f088fdeaa
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
492593
x-vercel-id
arn1::brdjb-1618326147552-e78aa7530408
etag
W/"c072d67ab93d4eb09e37e13808f8fd98d3b4aac2469231cd5ca5a52f088fdeaa"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="right-quote.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
424
no-highlight.js
yihui.org/js/ 		473 B
631 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/no-highlight.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
f3e61110b0b18d071a6488b3313005bb73eca69edd1512ef675767558eed9373
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
290231
x-vercel-id
arn1::brdjb-1618326147552-ffb4c2bc37f7
etag
W/"f3e61110b0b18d071a6488b3313005bb73eca69edd1512ef675767558eed9373"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="no-highlight.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
473
fix-footnote.js
yihui.org/js/ 		931 B
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/fix-footnote.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
8f5e701044685dfb548e48a9b8fbef7000ce746001fe666a94ee9d135e7b4f4b
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
51804
x-vercel-id
arn1::brdjb-1618326147552-49f5ba13a06a
etag
W/"8f5e701044685dfb548e48a9b8fbef7000ce746001fe666a94ee9d135e7b4f4b"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="fix-footnote.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
931
math-code.js
yihui.org/js/ 		713 B
869 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/math-code.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
8441ffc21a7958d823ab1afba463314e250752c0f7d197f56aaf9abedfd86137
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
2267938
x-vercel-id
arn1::brdjb-1618326147552-f32d80137acd
etag
W/"8441ffc21a7958d823ab1afba463314e250752c0f7d197f56aaf9abedfd86137"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="math-code.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
713
external-link.js
yihui.org/js/ 		222 B
375 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/external-link.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
477105
x-vercel-id
arn1::brdjb-1618326147582-1ef247f2e4c8
etag
W/"5440ba1380da47d43733193e1848b2a611928e93d4b3a2f804e5e7b39f3123ef"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="external-link.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
222
alt-title.js
yihui.org/js/ 		182 B
332 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/alt-title.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
984199
x-vercel-id
arn1::brdjb-1618326147582-565afebfff9c
etag
W/"cc282999238764573b11f1a97e6cd56f74e683ff3796a150c07e1903947790d5"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="alt-title.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
182
header-link.js
yihui.org/js/ 		270 B
432 B 		Script
General
Check archive.org
Download Go to
Full URL
https://yihui.org/js/header-link.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
76.76.21.21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://yihui.org/knitr/options/?version=1.2.1335&mode=server
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
server
Vercel
age
206356
x-vercel-id
arn1::brdjb-1618326147582-531a6c836f47
etag
W/"85ac8c91ae3d0c96b5de0ef24b3d025e2d067a473f8fffaaeb8e78d333a516c9"
strict-transport-security
max-age=63072000
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="header-link.js"
accept-ranges
bytes
x-vercel-cache
HIT
content-length
270
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mathjax.rstudio.com/2.7.2/
Redirect Chain
  • https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-MML-AM_CHTML
  • https://mathjax.rstudio.com/2.7.2/MathJax.js?config=TeX-MML-AM_CHTML
62 KB
62 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://mathjax.rstudio.com/2.7.2/MathJax.js?config=TeX-MML-AM_CHTML
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
13.226.155.25 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-13-226-155-25.dus51.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
7c2b61de9d81e1c64cce5afb3858b39a8e5191d2401c9e2f387a44ec568d711f

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Mon, 12 Apr 2021 21:22:45 GMT
via
1.1 9e627a2e7bf673974b02e3bf374bb843.cloudfront.net (CloudFront)
last-modified
Mon, 28 Aug 2017 12:54:29 GMT
server
AmazonS3
age
73850
etag
"359b9c63cb3ba43384b2995e5699a63f"
x-cache
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content-type
application/javascript
x-amz-cf-pop
DUS51-C1
content-length
63244
x-amz-cf-id
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Redirect headers

date
Mon, 12 Apr 2021 19:31:49 GMT
via
1.1 9e627a2e7bf673974b02e3bf374bb843.cloudfront.net (CloudFront)
server
AmazonS3
age
70239
x-cache
Hit from cloudfront
location
https://mathjax.rstudio.com/2.7.2/MathJax.js?config=TeX-MML-AM_CHTML
x-amz-cf-pop
DUS51-C1
content-length
0
x-amz-cf-id
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17 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
2235575
cross-origin-resource-policy
cross-origin
alt-svc
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content-length
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cf-request-id
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timing-allow-origin
*
last-modified
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server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb03e7a-b3b3"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"max_age":604800,"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=f27lenP13cXHh0iM4FBemxZH4nZZKoqW5gON5lnEB1X9A6t9jaW4KbtnpusOsLn00i9AGC8eT%2Bcoac%2BY%2BZDA9jQKOYZq6IwwoMg0OQcwCSn4C%2By6QS6UNjMJ2bhXXl0Cew%3D%3D"}],"group":"cf-nel"}
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cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
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expires
Sun, 03 Apr 2022 15:02:27 GMT
r.min.js
cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/ 		744 B
703 B 		Script
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/r.min.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
9370591
cross-origin-resource-policy
cross-origin
alt-svc
h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
378
cf-request-id
096d5a69d100004aa3e480f000000001
timing-allow-origin
*
last-modified
Mon, 04 May 2020 16:10:34 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb03e7a-2e8"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"max_age":604800,"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=la4k9WFa20JmndLV5ygwekLXvTXWJxqM8fLdpkSEK5VmerTyR%2Fh2L%2FHL25XDR4DvrLdiwqbo%2FUSyQ7zoct2Djt1rBWvJFciLCD%2BNVlAOIzO2m8JaMTfixNjftiOx9uhmjg%3D%3D"}],"group":"cf-nel"}
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
vary
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cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
63f593561ac34aa3-FRA
expires
Sun, 03 Apr 2022 15:02:27 GMT
yaml.min.js
cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/ 		637 B
727 B 		Script
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/yaml.min.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
b6f9b4947b2e51970e7e3ff40bdc494d4e0e431e4aa5483151c0172d7e64bf00
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
3517055
cross-origin-resource-policy
cross-origin
alt-svc
h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
374
cf-request-id
096d5a69d200004aa3178a7000000001
timing-allow-origin
*
last-modified
Mon, 04 May 2020 16:10:34 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb03e7a-27d"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"max_age":604800,"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=mICaDYLbX1mqt0tybMW0UU9Y%2B3Yy32X1omCb8%2Fuj06LTmwCWCLMauaZILFb%2BADm6nBogmAuUmcTXZy%2BYqoaoIHlyFt3D0cPlMlLcYDWncbD3nOqKHiFSGM1nHJC%2BFXEwaw%3D%3D"}],"group":"cf-nel"}
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
vary
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cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
63f593561ac54aa3-FRA
expires
Sun, 03 Apr 2022 15:02:27 GMT
tex.min.js
cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/ 		407 B
920 B 		Script
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/languages/tex.min.js
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
4c05417ad9ce800f80553d01477b7762af311bcb8cdcb6665e79dc94f1d8b39d
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 15:02:27 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
9364898
cross-origin-resource-policy
cross-origin
alt-svc
h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
251
cf-request-id
096d5a69d300004aa31f859000000001
timing-allow-origin
*
last-modified
Mon, 04 May 2020 16:10:34 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb03e7a-197"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"max_age":604800,"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=kUQ6zjosADd%2F4KwM6iE1laNIX11gLQGo1DtrUWAUCMUob8qEvmpPEQd%2BbBW%2BRxZSRchTGeIH%2B9kDfdosw9Re794HIYOg3cmBlqHmwVMSDFET4xOArN%2BRihEQowWFSDcgNw%3D%3D"}],"group":"cf-nel"}
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
vary
Accept-Encoding
cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
63f593561ac74aa3-FRA
expires
Sun, 03 Apr 2022 15:02:27 GMT
TeX-MML-AM_CHTML.js
mathjax.rstudio.com/2.7.2/config/
Redirect Chain
  • https://mathjax.rstudio.com/latest/config/TeX-MML-AM_CHTML.js?V=2.7.2
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271 KB
272 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://mathjax.rstudio.com/2.7.2/config/TeX-MML-AM_CHTML.js?V=2.7.2
Requested by
Host: yihui.org
URL: https://yihui.org/knitr/options/?version=1.2.1335&mode=server
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
13.226.155.25 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-13-226-155-25.dus51.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
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Request headers

Referer
https://yihui.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Tue, 13 Apr 2021 02:13:44 GMT
via
1.1 9e627a2e7bf673974b02e3bf374bb843.cloudfront.net (CloudFront)
last-modified
Mon, 28 Aug 2017 12:54:33 GMT
server
AmazonS3
age
93793
etag
"1d7fdb39bca75549d5df4034899de01b"
x-cache
Hit from cloudfront
content-type
application/javascript
x-amz-cf-pop
DUS51-C1
content-length
277531
x-amz-cf-id
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Redirect headers

date
Mon, 12 Apr 2021 19:31:47 GMT
via
1.1 9e627a2e7bf673974b02e3bf374bb843.cloudfront.net (CloudFront)
server
AmazonS3
age
70242
x-cache
Hit from cloudfront
location
https://mathjax.rstudio.com/2.7.2/config/TeX-MML-AM_CHTML.js?V=2.7.2
x-amz-cf-pop
DUS51-C1
content-length
0
x-amz-cf-id
bHg_AI3BVfHt6wSqgFYznJtj-X1t8Iz57AzHJ9hW_mG8-O3anjWpjg==

Verdicts & Comments Add Verdict or Comment

12 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| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker object| trustedTypes boolean| crossOriginIsolated function| disqus_config object| hljs object| MathJax

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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
Strict-Transport-Security max-age=63072000

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.

cdnjs.cloudflare.com
mathjax.rstudio.com
yihui.org
13.226.155.25
2606:4700::6810:125e
76.76.21.21
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