URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Submission: On May 02 via automatic, source hackernews

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 8 HTTP transactions. The main IP is 104.18.130.189, located in San Francisco, United States and belongs to CLOUDFLARENET - Cloudflare, Inc., US. The main domain is www.harshsikka.me.
TLS certificate: Issued by CloudFlare Inc ECC CA-2 on April 22nd 2019. Valid for: a year.
This is the only time www.harshsikka.me was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
4 104.18.130.189 13335 (CLOUDFLAR...)
1 2a00:1450:400... 15169 (GOOGLE)
1 205.185.208.52 20446 (HIGHWINDS3)
2 2a00:1450:400... 15169 (GOOGLE)
8 4
Domain Requested by
4 www.harshsikka.me www.harshsikka.me
2 www.google-analytics.com www.googletagmanager.com
www.harshsikka.me
1 code.jquery.com www.harshsikka.me
1 www.googletagmanager.com www.harshsikka.me
8 4

This site contains links to these domains. Also see Links.

Domain
docs.ghost.org
twitter.com
math.mit.edu
ocw.mit.edu
www.facebook.com
ghost.org
Subject Issuer Validity Valid
www.harshsikka.me
CloudFlare Inc ECC CA-2
2019-04-22 -
2020-04-22
a year crt.sh
*.google-analytics.com
Google Internet Authority G3
2019-04-16 -
2019-07-09
3 months crt.sh
jquery.org
COMODO RSA Domain Validation Secure Server CA
2018-10-17 -
2020-10-16
2 years crt.sh

This page contains 1 frames:

Primary Page: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Frame ID: DDA35A62D461442471738580AA2F2C41
Requests: 8 HTTP requests in this frame

Screenshot


Detected technologies

Overall confidence: 100%
Detected patterns
  • meta generator /Ghost(?:\s([\d.]+))?/i

Overall confidence: 100%
Detected patterns
  • meta generator /Ghost(?:\s([\d.]+))?/i

Overall confidence: 100%
Detected patterns
  • headers server /cloudflare/i

Overall confidence: 100%
Detected patterns
  • script /google-analytics\.com\/(?:ga|urchin|(analytics))\.js/i
  • env /^gaGlobal$/i

Overall confidence: 100%
Detected patterns
  • env /^google_tag_manager$/i

Overall confidence: 100%
Detected patterns
  • env /^jQuery$/i

Page Statistics

8
Requests

100 %
HTTPS

50 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

91 kB
Transfer

260 kB
Size

4
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

8 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
25 KB
8 KB
Document
General
Full URL
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.18.130.189 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
2bed5f21edffe811ca228fd4c4d16ffb986a77dbcfd52ab15bace64f8c13e83f

Request headers

:method
GET
:authority
www.harshsikka.me
:scheme
https
:path
/self-studying-the-mit-applied-math-curriculum/
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
accept-encoding
gzip, deflate, br
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

status
200 200 OK
date
Thu, 02 May 2019 19:54:05 GMT
content-type
text/html; charset=utf-8
set-cookie
__cfduid=d31b7409f06c0a75c65be7deaf4e7e5fc1556826845; expires=Fri, 01-May-20 19:54:05 GMT; path=/; domain=.www.harshsikka.me; HttpOnly
cache-control
public, max-age=0
cf-railgun
direct (starting new WAN connection)
last-modified
Thu, 02 May 2019 20:27:41 GMT
vary
Accept-Encoding
x-ghost-cache-status
From Cache
x-request-id
1f3e89c083a305af28bdc1478a4ab6d5
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server
cloudflare
cf-ray
4d0c8b89cdf69c51-AMS
content-encoding
gzip
screen.css
www.harshsikka.me/assets/built/
40 KB
8 KB
Stylesheet
General
Full URL
https://www.harshsikka.me/assets/built/screen.css?v=95c0a02688
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.18.130.189 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
be420b77fc36b5afe0abb22b860090e7f6b980a8c5c7244a16decfbd3e4cd6d5

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 02 May 2019 19:54:05 GMT
content-encoding
gzip
cf-cache-status
HIT
last-modified
Thu, 02 May 2019 20:30:20 GMT
server
cloudflare
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
status
200, 200 OK
x-ghost-cache-status
From Cache
cache-control
public, max-age=31536000
cf-ray
4d0c8b8a1e5d9c51-AMS
x-request-id
c2caca8d5110b5101d00dab6d26c0a58
expires
Fri, 01 May 2020 19:54:05 GMT
js
www.googletagmanager.com/gtag/
63 KB
24 KB
Script
General
Full URL
https://www.googletagmanager.com/gtag/js?id=UA-83227040-4
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:820::2008 , Ireland, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Google Tag Manager (scaffolding) /
Resource Hash
8448e2e515a6ea0d09b30cda9c29807637e1e44548cabc7a8598e6cb26f71440
Security Headers
Name Value
X-Xss-Protection 0

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 02 May 2019 19:54:05 GMT
content-encoding
br
last-modified
Wed, 01 May 2019 22:14:49 GMT
server
Google Tag Manager (scaffolding)
access-control-allow-origin
http://www.googletagmanager.com
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
status
200
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
cache-control
private, max-age=900
access-control-allow-credentials
true
access-control-allow-headers
Cache-Control
content-length
24721
x-xss-protection
0
expires
Thu, 02 May 2019 19:54:05 GMT
0.jpg
www.harshsikka.me/content/images/size/w100/2019/04/
3 KB
3 KB
Image
General
Full URL
https://www.harshsikka.me/content/images/size/w100/2019/04/0.jpg
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.18.130.189 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
170e1af9d4782f7411321d39295ff3036a90cc4de4701c87787ef359a29369c5

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 02 May 2019 19:54:05 GMT
cf-cache-status
HIT
last-modified
Thu, 02 May 2019 20:31:54 GMT
server
cloudflare
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
image/jpeg
status
200, 200 OK
x-ghost-cache-status
From Cache
cache-control
public, max-age=31536000
cf-ray
4d0c8b8a1e5e9c51-AMS
x-request-id
f3bf4077019426987db189b8f75f0ca0
expires
Fri, 01 May 2020 19:54:05 GMT
jquery-3.2.1.min.js
code.jquery.com/
85 KB
30 KB
Script
General
Full URL
https://code.jquery.com/jquery-3.2.1.min.js
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
205.185.208.52 Phoenix, United States, ASN20446 (HIGHWINDS3 - Highwinds Network Group, Inc., US),
Reverse DNS
vip052.ssl.hwcdn.net
Software
nginx /
Resource Hash
87083882cc6015984eb0411a99d3981817f5dc5c90ba24f0940420c5548d82de

Request headers

User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Origin
https://www.harshsikka.me

Response headers

Date
Thu, 02 May 2019 19:54:05 GMT
Content-Encoding
gzip
Last-Modified
Mon, 20 Mar 2017 19:01:15 GMT
Server
nginx
ETag
W/"58d026fb-15283"
Vary
Accept-Encoding
X-HW
1556826845.dop015.lo4.shc,1556826845.dop015.lo4.t,1556826845.cds058.lo4.c
Content-Type
application/javascript; charset=utf-8
Access-Control-Allow-Origin
*
Cache-Control
max-age=315360000, public
Connection
Keep-Alive
Accept-Ranges
bytes
Content-Length
30125
jquery.fitvids.js
www.harshsikka.me/assets/built/
2 KB
956 B
Script
General
Full URL
https://www.harshsikka.me/assets/built/jquery.fitvids.js?v=95c0a02688
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.18.130.189 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
c70017203d215e0c52d46a0ab878c8bbba0e6d1520bc410842a03c00a2d97a55

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 02 May 2019 19:54:05 GMT
content-encoding
gzip
cf-cache-status
HIT
last-modified
Thu, 02 May 2019 20:30:20 GMT
server
cloudflare
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
status
200, 200 OK
x-ghost-cache-status
From Cache
cache-control
public, max-age=31536000
cf-ray
4d0c8b8a5e9e9c51-AMS
x-request-id
649c6520badb4277ac3b6bbd723a2610
expires
Fri, 01 May 2020 19:54:05 GMT
analytics.js
www.google-analytics.com/
43 KB
17 KB
Script
General
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=UA-83227040-4
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:809::200e , Ireland, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
3e552578c7d450b023f2cd9d28f830be4335c3acc6c4ab6dadda0769f09e5f22
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Wed, 16 Jan 2019 20:01:45 GMT
server
Golfe2
age
429
date
Thu, 02 May 2019 19:46:56 GMT
vary
Accept-Encoding
content-type
text/javascript
status
200
cache-control
public, max-age=7200
timing-allow-origin
*
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
content-length
17543
expires
Thu, 02 May 2019 21:46:56 GMT
collect
www.google-analytics.com/r/
35 B
111 B
Image
General
Full URL
https://www.google-analytics.com/r/collect?v=1&_v=j73&a=1680773758&t=pageview&_s=1&dl=https%3A%2F%2Fwww.harshsikka.me%2Fself-studying-the-mit-applied-math-curriculum%2F&ul=en-us&de=UTF-8&dt=Self%20Studying%20the%20MIT%20Applied%20Math%20Curriculum&sd=24-bit&sr=1600x1200&vp=1585x1200&je=0&_u=IEBAAUAB~&jid=631331879&gjid=2016571507&cid=51604278.1556826846&tid=UA-83227040-4&_gid=1477847624.1556826846&_r=1&gtm=2ou430&z=1411036142
Requested by
Host: www.harshsikka.me
URL: https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:809::200e , Ireland, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://www.harshsikka.me/self-studying-the-mit-applied-math-curriculum/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

pragma
no-cache
date
Thu, 02 May 2019 19:54:06 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
access-control-allow-origin
*
content-type
image/gif
status
200
cache-control
no-cache, no-store, must-revalidate
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

15 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| onselectstart object| onselectionchange function| queueMicrotask object| google_tag_manager object| dataLayer function| gtag string| GoogleAnalyticsObject function| ga object| images object| google_tag_data object| gaplugins object| gaGlobal object| gaData function| $ function| jQuery

4 Cookies

Domain/Path Name / Value
.harshsikka.me/ Name: _gat_gtag_UA_83227040_4
Value: 1
.harshsikka.me/ Name: _gid
Value: GA1.2.1477847624.1556826846
.harshsikka.me/ Name: _ga
Value: GA1.2.51604278.1556826846
.www.harshsikka.me/ Name: __cfduid
Value: d31b7409f06c0a75c65be7deaf4e7e5fc1556826845