feynmanlectures.caltech.edu Open in urlscan Pro
54.149.100.187 Public Scan

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Add Verdict Report

Submitted URL:
http://feynmanlectures.caltech.edu/
Effective URL:
https://feynmanlectures.caltech.edu/
Submission: On April 08 via manual (April 8th 2021, 2:54:55 pm UTC) from IN

Summary HTTP 15 Redirects Links 4 Behaviour Indicators

Summary

This website contacted 3 IPs in 2 countries across 3 domains to perform 15 HTTP transactions. The main IP is 54.149.100.187, located in Boardman, United States and belongs to AMAZON-02, US. The main domain is feynmanlectures.caltech.edu.
TLS certificate: Issued by InCommon RSA Server CA on October 7th 2019. Valid for: 2 years.

This is the only time feynmanlectures.caltech.edu was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 13	54.149.100.187 54.149.100.187	16509 (AMAZON-02) (AMAZON-02)
1	2a04:4e42:1b:... 2a04:4e42:1b::621	54113 (FASTLY) (FASTLY)
2	2a00:1450:400... 2a00:1450:4001:82b::200e	15169 (GOOGLE) (GOOGLE)
15	3

13 54.149.100.187 (Boardman, United States) 1 redirects

ASN16509 (AMAZON-02, US)
PTR: ec2-54-149-100-187.us-west-2.compute.amazonaws.com

feynmanlectures.caltech.edu	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a04:4e42:1b::621 (United States)

ASN54113 (FASTLY, US)

cdn.jsdelivr.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:82b::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
13	caltech.edu 1 redirects feynmanlectures.caltech.edu	262 KB
2	google-analytics.com www.google-analytics.com	19 KB
1	jsdelivr.net cdn.jsdelivr.net	33 KB
15	3

	Domain	Requested by
13	feynmanlectures.caltech.edu	1 redirects feynmanlectures.caltech.edu cdn.jsdelivr.net
2	www.google-analytics.com	feynmanlectures.caltech.edu www.google-analytics.com
1	cdn.jsdelivr.net	feynmanlectures.caltech.edu
15	3

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

Domain
www.feynmanlectures.info
twitter.com
www.facebook.com
www.feynmanlectures.caltech.edu

Subject Issuer	Validity	Valid
portal.caltech.edu InCommon RSA Server CA	`2019-10-07` - `2021-10-06`	2 years	crt.sh
f3.shared.global.fastly.net GlobalSign CloudSSL CA - SHA256 - G3	`2021-03-25` - `2022-03-26`	a year	crt.sh
*.google-analytics.com GTS CA 1O1	`2021-03-16` - `2021-06-08`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://feynmanlectures.caltech.edu/
Frame ID: 002474461A4EA1A403622EC7230BFD02
Requests: 15 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page URL History Show full URLs

http://feynmanlectures.caltech.edu/ HTTP 301
https://feynmanlectures.caltech.edu/ Page URL

Detected technologies

Debian (Operating Systems) Expand

Overall confidence: 100%
Detected patterns

headers server /Debian/i

Apache (Web Servers) Expand

Overall confidence: 100%
Detected patterns

headers server /(?:Apache(?:$|\/([\d.]+)|[^/-])|(?:^|\b)HTTPD)/i

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

script /google-analytics\.com\/(?:ga|urchin|analytics)\.js/i

jQuery (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

script /jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?/i

Page Statistics

15
Requests

100 %
HTTPS

67 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

314 kB
Transfer

431 kB
Size

5
Cookies

4 Outgoing links

These are links going to different origins than the main page.

URL: http://www.feynmanlectures.info/
Title: The Feynman Lectures Website

Search URL Search Domain Scan URL

URL: http://twitter.com/home?status=Check%20out%20the%20HTML%20edition%20of%20The%20Feynman%20Lectures%20on%20Physics,%20free%20for%20all%20to%20view%20at%20http://www.feynmanlectures.caltech.edu.
Title:

Search URL Search Domain Scan URL

URL: http://www.facebook.com/share.php?u=http://www.feynmanlectures.caltech.edu
Title:

Search URL Search Domain Scan URL

URL: http://www.feynmanlectures.caltech.edu/#restore
Title: feynmanlectures.caltech.edu#restore

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://feynmanlectures.caltech.edu/ HTTP 301
https://feynmanlectures.caltech.edu/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

15 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request / Show response
feynmanlectures.caltech.edu/
Redirect Chain

http://feynmanlectures.caltech.edu/
https://feynmanlectures.caltech.edu/

9 KB
4 KB

569ms
194ms

Document
text/html

54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: b46dd3fca2cda267371101ad11938070d59ff39822375d82cbf33c484d69f85a

Request headers

:method: GET
:authority: feynmanlectures.caltech.edu
:scheme: https
:path: /
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: Thu, 08 Apr 2021 14:54:36 GMT
content-type: text/html
content-length: 3311
set-cookie: AWSALB=lFEwKtGk+P6Jpj4X0KZUuCYaZ3gwG9m3uH1sk9leMLezWAOgQCX1xlX3QfprrNAu5MzTBqZSYDUyBUuGcVHJp6N0UQq8LVDfD15N82FxWrm64aXiARJL6cTeJDhC; Expires=Thu, 15 Apr 2021 14:54:36 GMT; Path=/ AWSALBCORS=lFEwKtGk+P6Jpj4X0KZUuCYaZ3gwG9m3uH1sk9leMLezWAOgQCX1xlX3QfprrNAu5MzTBqZSYDUyBUuGcVHJp6N0UQq8LVDfD15N82FxWrm64aXiARJL6cTeJDhC; Expires=Thu, 15 Apr 2021 14:54:36 GMT; Path=/; SameSite=None; Secure
server: Apache/2.4.38 (Debian)
last-modified: Thu, 01 Apr 2021 17:06:21 GMT
etag: "25ed-5beec40259770-gzip"
accept-ranges: bytes
vary: Accept-Encoding
content-encoding: gzip
cache-control: max-age=2628000, public

Redirect headers

Server: awselb/2.0
Date: Thu, 08 Apr 2021 14:54:35 GMT
Content-Type: text/html
Content-Length: 134
Connection: keep-alive
Location: https://feynmanlectures.caltech.edu:443/

GET
H2 200 flp36.css
feynmanlectures.caltech.edu/css/ 7 KB
2 KB 198ms
197ms Stylesheet
text/css 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/css/flp36.css
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: db8e6fd57af4b40218efff170df6590f87f4031be2aae125fd2f2a49b96a5b9b

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
content-encoding: gzip
last-modified: Wed, 10 Mar 2021 18:32:52 GMT
server: Apache/2.4.38 (Debian)
etag: "1aae-5bd32e515c180-gzip"
vary: Accept-Encoding
content-type: text/css
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 1922

GET
H2 200 jquery.min.js Show response
cdn.jsdelivr.net/npm/jquery@1.11.1/dist/ 94 KB
33 KB 21ms
6ms Script
application/javascript 2a04:4e42:1b::621
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.jsdelivr.net/npm/jquery@1.11.1/dist/jquery.min.js

Requested by

Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

2a04:4e42:1b::621 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Resource Hash

4b940065e2a67c37e3bd02b23c651f4744a3c219aba2d4fb99a631113494d376

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Origin: https://feynmanlectures.caltech.edu
Referer: https://feynmanlectures.caltech.edu/
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

strict-transport-security: max-age=31536000; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
age: 2450043
x-cache: HIT, HIT
cross-origin-resource-policy: cross-origin
content-length: 33288
etag: W/"1764d-sUoijDYy6/49IOXqgwzuoxNSM1M"
x-served-by: cache-fra19171-FRA, cache-hhn4030-HHN
date: Thu, 08 Apr 2021 14:54:36 GMT
vary: Accept-Encoding
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
access-control-expose-headers: *
cache-control: public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges: bytes
timing-allow-origin: *

GET
H2 200 jquery.mobile.custom.min.js Show response
feynmanlectures.caltech.edu/ 8 KB
3 KB 202ms
201ms Script
application/javascript 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/jquery.mobile.custom.min.js
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 5c2f6c5d5cd0fe0ecfa24b844f841c8a73d8baaafb827ec413afa41335aa1c47

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
content-encoding: gzip
last-modified: Tue, 09 Feb 2016 15:38:26 GMT
server: Apache/2.4.38 (Debian)
etag: "1e68-52b581bbc6080-gzip"
vary: Accept-Encoding
content-type: application/javascript
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 2872

GET
H2 200 jquery.color-2.1.2.min.js Show response
feynmanlectures.caltech.edu/ 6 KB
3 KB 200ms
199ms Script
application/javascript 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/jquery.color-2.1.2.min.js
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 1f6f127715ab677f3b2dd9f4aa8802cc58940c3c5f3e2348c895fb0440909031

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
content-encoding: gzip
last-modified: Thu, 25 Feb 2016 14:00:13 GMT
server: Apache/2.4.38 (Debian)
etag: "19cc-52c9899f25540-gzip"
vary: Accept-Encoding
content-type: application/javascript
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 2745

GET
H2 200 flphome36.js Show response
feynmanlectures.caltech.edu/ 20 KB
6 KB 203ms
202ms Script
application/javascript 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/flphome36.js
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 68c65468b5dabd1017b260291c79b951824d0357e61f18ab50ce6f1d9d40f886

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
content-encoding: gzip
last-modified: Wed, 10 Mar 2021 18:30:48 GMT
server: Apache/2.4.38 (Debian)
etag: "50f6-5bd32ddabd650-gzip"
vary: Accept-Encoding
content-type: application/javascript
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 5290

GET
H2 200 flp.png
feynmanlectures.caltech.edu/img/ 31 KB
32 KB 201ms
200ms Image
image/png 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/flp.png
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 16ee5631b19675577ae085e7d4ed64c458656b673eaa3715a57b7fda8be02797

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Wed, 20 Sep 2017 12:38:23 GMT
server: Apache/2.4.38 (Debian)
etag: "7c4d-5599e405d33a0"
content-type: image/png
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 31821

GET
H2 200 twit16.png
feynmanlectures.caltech.edu/img/ 1 KB
2 KB 191ms
191ms Image
image/png 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/twit16.png
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 20810a0bf752601c5faea87f7e8c679b3754f766b96af598b871e8e00b7a747d

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Thu, 07 Feb 2019 19:21:21 GMT
server: Apache/2.4.38 (Debian)
etag: "4b3-58152bf6559a8"
content-type: image/png
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 1203

GET
H2 200 fb16.png
feynmanlectures.caltech.edu/img/ 1 KB
2 KB 200ms
199ms Image
image/png 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/fb16.png
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 2786d9b8414b2167172e72a32d076faafa2e4a5a013c43407bc91f165abf91a8

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Thu, 07 Feb 2019 19:21:19 GMT
server: Apache/2.4.38 (Debian)
etag: "454-58152bf426470"
content-type: image/png
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 1108

GET
H2 200 email16.png
feynmanlectures.caltech.edu/img/ 1 KB
2 KB 199ms
198ms Image
image/png 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/email16.png
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 7d79dfffe93474c7d2a4ce1e0860bdb99862b58f67b13844bd0a1a3320bd575e

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Thu, 07 Feb 2019 19:21:18 GMT
server: Apache/2.4.38 (Debian)
etag: "557-58152bf2a96b0"
content-type: image/png
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 1367

GET
H2 200 S46_16.jpg
feynmanlectures.caltech.edu/img/ 99 KB
99 KB 207ms
206ms Image
image/jpeg 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/S46_16.jpg
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: e63cda2fe51253bc9338f06bf1b4e5792bab1392a95b4e8dc81f0a213bc7cdd1

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Wed, 05 Mar 2014 08:22:11 GMT
server: Apache/2.4.38 (Debian)
etag: "18a21-4f3d7b79ed2c0"
content-type: image/jpeg
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 100897

GET
H2 200 S46_17.jpg
feynmanlectures.caltech.edu/img/ 106 KB
107 KB 1348ms
1347ms Image
image/jpeg 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://feynmanlectures.caltech.edu/img/S46_17.jpg
Requested by: Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 40ba848251bd8bf7ea9c33f3f2229f1d521d734744437c76c47fd7cc32cdc610

Request headers

Referer: https://feynmanlectures.caltech.edu/
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: Thu, 08 Apr 2021 14:54:37 GMT
last-modified: Wed, 05 Mar 2014 08:22:10 GMT
server: Apache/2.4.38 (Debian)
etag: "1a95e-4f3d7b78f9080"
content-type: image/jpeg
cache-control: max-age=2628000, public
accept-ranges: bytes
content-length: 108894

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 48 KB
19 KB 7ms
6ms Script
text/javascript 2a00:1450:4001:82b::200e
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: feynmanlectures.caltech.edu
URL: https://feynmanlectures.caltech.edu/flphome36.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:82b::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

f79723478f4c48501cd49ac52b81d6244a6562b9d3f08ce8ab208a8b8878d4c4

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://feynmanlectures.caltech.edu/
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

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Fri, 19 Mar 2021 19:22:18 GMT
server: Golfe2
age: 470
date: Thu, 08 Apr 2021 14:46:46 GMT
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=7200
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 19463
expires: Thu, 08 Apr 2021 16:46:46 GMT

GET
H2 200 debug Show response
feynmanlectures.caltech.edu/ 7 B
485 B 201ms
200ms XHR
text/plain 54.149.100.187
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://feynmanlectures.caltech.edu/debug
Requested by: Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/jquery@1.11.1/dist/jquery.min.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.149.100.187 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-149-100-187.us-west-2.compute.amazonaws.com
Software: Apache/2.4.38 (Debian) /
Resource Hash: 27990f41a1eedfb26f7323bd1ae2b8ec411a44b1abcb5981f71e8389b8400c42

Request headers

Accept: */*
Referer: https://feynmanlectures.caltech.edu/
X-Requested-With: XMLHttpRequest
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: Thu, 08 Apr 2021 14:54:36 GMT
last-modified: Fri, 22 Feb 2019 15:23:08 GMT
server: Apache/2.4.38 (Debian)
accept-ranges: bytes
etag: "7-5827d2b10cef0"
content-length: 7

POST
H3-Q050 200 collect Show response
www.google-analytics.com/j/ 2 B
394 B 14ms
13ms XHR
text/plain 2a00:1450:4001:82b::200e
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j89&a=909477319&t=pageview&_s=1&dl=https%3A%2F%2Ffeynmanlectures.caltech.edu%2F&ul=en-us&de=UTF-8&dt=The%20Feynman%20Lectures%20on%20Physics&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=IEDAAAABAAAAAC~&jid=1230625813&gjid=2039943181&cid=744447740.1617893677&tid=UA-43056719-2&_gid=2046260473.1617893677&_r=1&_slc=1&z=1123631604

Requested by

Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js

Protocol

H3-Q050

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:82b::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

a048e640908046be06e00eab37742b5d5ff80964af58cfd22f7cb2de4dfe375f

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

Referer: https://feynmanlectures.caltech.edu/
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
Content-Type: text/plain

Response headers

pragma: no-cache
date: Thu, 08 Apr 2021 14:54:36 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
access-control-allow-origin: https://feynmanlectures.caltech.edu
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 2
expires: Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

39 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.

5 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
feynmanlectures.caltech.edu/	1970-01-19 17:34:58	Name: AWSALBCORS Value: LeUWry8Lei03KaKeq1+J2fSDo/64Axu6kPZeI3xR+KL3pbcyZtyBQdjWcP3kmxjiZzLEZEE+/G3oZJzk/oqdceNhuR1wBkbTUkOJeQrNpLv5WjUTSfGpH5d3S7uL
feynmanlectures.caltech.edu/	1970-01-19 17:34:58	Name: AWSALB Value: LeUWry8Lei03KaKeq1+J2fSDo/64Axu6kPZeI3xR+KL3pbcyZtyBQdjWcP3kmxjiZzLEZEE+/G3oZJzk/oqdceNhuR1wBkbTUkOJeQrNpLv5WjUTSfGpH5d3S7uL
.caltech.edu/	1970-01-19 17:24:53	Name: _gat Value: 1
.caltech.edu/	1970-01-19 17:26:20	Name: _gid Value: GA1.2.2046260473.1617893677
.caltech.edu/	1970-01-20 10:56:05	Name: _ga Value: GA1.2.744447740.1617893677

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.

cdn.jsdelivr.net
feynmanlectures.caltech.edu
www.google-analytics.com
2a00:1450:4001:82b::200e
2a04:4e42:1b::621
54.149.100.187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feynmanlectures.caltech.edu Open in urlscan Pro 54.149.100.187 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page URL History Show full URLs

Detected technologies

Page Statistics

15 Requests

100 %HTTPS

67 %IPv6

3 Domains

3 Subdomains

3 IPs

2 Countries

314 kBTransfer

431 kBSize

5 Cookies

4 Outgoing links

Page URL History

Redirected requests

15 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

39 JavaScript Global Variables

5 Cookies

Indicators

feynmanlectures.caltech.edu Open in urlscan Pro
54.149.100.187 Public Scan

Screenshot
Live screenshot

Full Image

15
Requests

100 %
HTTPS

67 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

314 kB
Transfer

431 kB
Size

5
Cookies

15 HTTP transactions
0 data transactions