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masteringjs.io Open in urlscan Pro
104.198.14.52  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: https://www.masteringjs.io/
Effective URL: https://masteringjs.io/
Submission: On March 20 via api from US
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 9 IPs in 5 countries across 8 domains to perform 21 HTTP transactions. The main IP is 104.198.14.52, located in The Dalles, United States and belongs to GOOGLE, US. The main domain is masteringjs.io.
TLS certificate: Issued by R3 on March 16th 2021. Valid for: 3 months.
This is the only time masteringjs.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 2a03:b0c0:3:d... 14061 (DIGITALOC...)
12 104.198.14.52 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 23.111.10.140 33438 (HIGHWINDS2)
1 52.217.82.190 16509 (AMAZON-02)
2 54.86.159.28 14618 (AMAZON-AES)
1 178.128.255.150 14061 (DIGITALOC...)
1 94.31.29.32 6461 (ZAYO-6461)
1 2 142.250.185.198 15169 (GOOGLE)
1 1 52.212.52.211 16509 (AMAZON-02)
1 52.16.188.154 16509 (AMAZON-02)
21 9
1    2a03:b0c0:3:d0::d22:8001 (Frankfurt am Main, Germany)

ASN14061 (DIGITALOCEAN-ASN, US)
www.masteringjs.io
12    104.198.14.52 (The Dalles, United States)

ASN15169 (GOOGLE, US)
PTR: 52.14.198.104.bc.googleusercontent.com
masteringjs.io
1    2a00:1450:4001:82a::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.googleapis.com
1    23.111.10.140 (United States)

ASN33438 (HIGHWINDS2, US)
cdn.carbonads.com
1    52.217.82.190 (Ashburn, United States)

ASN16509 (AMAZON-02, US)
PTR: s3-1.amazonaws.com
s3.amazonaws.com
2    54.86.159.28 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-54-86-159-28.compute-1.amazonaws.com
g0a3nbw0xa.execute-api.us-east-1.amazonaws.com
1    178.128.255.150 (Amsterdam, Netherlands)

ASN14061 (DIGITALOCEAN-ASN, US)
PTR: srv-eu-nl-11.buysellads.com
srv.carbonads.net
1    94.31.29.32 (United Kingdom)

ASN6461 (ZAYO-6461, US)
PTR: 94.31.29.32.IPYX-077437-ZYO.above.net
cdn4.buysellads.net
2    142.250.185.198 (United States)

ASN15169 (GOOGLE, US)
PTR: fra16s52-in-f6.1e100.net
ad.doubleclick.net
1    52.212.52.211 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-52-212-52-211.eu-west-1.compute.amazonaws.com
pixel.adsafeprotected.com
1    52.16.188.154 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-52-16-188-154.eu-west-1.compute.amazonaws.com
static.adsafeprotected.com
Domain Requested by
12 masteringjs.io masteringjs.io
2 ad.doubleclick.net 1 redirects masteringjs.io
2 g0a3nbw0xa.execute-api.us-east-1.amazonaws.com masteringjs.io
1 static.adsafeprotected.com masteringjs.io
1 pixel.adsafeprotected.com 1 redirects
1 cdn4.buysellads.net masteringjs.io
1 srv.carbonads.net cdn.carbonads.com
1 s3.amazonaws.com masteringjs.io
1 cdn.carbonads.com masteringjs.io
1 fonts.googleapis.com masteringjs.io
1 www.masteringjs.io 1 redirects
21 11

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

Domain
www.getrevue.co
srv.carbonads.net
carbonads.net
Subject Issuer Validity Valid
masteringjs.io
R3		 2021-03-16 -
2021-06-14		 3 months crt.sh
upload.video.google.com
GTS CA 1O1		 2021-02-23 -
2021-05-18		 3 months crt.sh
*.carbonads.com
Sectigo RSA Domain Validation Secure Server CA		 2020-04-03 -
2022-04-08		 2 years crt.sh
s3.amazonaws.com
DigiCert Baltimore CA-2 G2		 2020-08-04 -
2021-08-09		 a year crt.sh
*.execute-api.us-east-1.amazonaws.com
Amazon		 2020-08-19 -
2021-09-19		 a year crt.sh
*.carbonads.net
Sectigo RSA Domain Validation Secure Server CA		 2019-09-19 -
2021-10-12		 2 years crt.sh
*.buysellads.net
Sectigo RSA Domain Validation Secure Server CA		 2019-08-23 -
2021-08-22		 2 years crt.sh
*.doubleclick.net
GTS CA 1O1		 2021-02-23 -
2021-05-18		 3 months crt.sh
static.adsafeprotected.com
Amazon		 2021-01-06 -
2022-02-04		 a year crt.sh

This page contains 1 frames:

Primary Page: https://masteringjs.io/
Frame ID: 9B2C21027EA57B9B76FE387A2FEABA95
Requests: 20 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page URL History Show full URLs

  1. https://www.masteringjs.io/ HTTP 301
    https://masteringjs.io/ Page URL

Detected technologies

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

Page Statistics

21
Requests

100 %
HTTPS

18 %
IPv6

8
Domains

11
Subdomains

9
IPs

5
Countries

171 kB
Transfer

222 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://www.masteringjs.io/ HTTP 301
    https://masteringjs.io/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 18
  • https://ad.doubleclick.net/ddm/trackimp/N572608.452584BUYSELLADS.COM/B25081771.290295965;dc_trk_aid=484716929;dc_trk_cid=143487388;ord=161621440;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;gdpr=$;gdpr_consent=$ HTTP 302
  • https://ad.doubleclick.net/ddm/trackimp/N572608.452584BUYSELLADS.COM/B25081771.290295965;dc_pre=CMSenemDvu8CFeHKuwgdiWUEGg;dc_trk_aid=484716929;dc_trk_cid=143487388;ord=161621440;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;gdpr=$;gdpr_consent=$
Request Chain 19
  • https://pixel.adsafeprotected.com/rfw/st/552026/51450471/skeleton.gif?gdpr=$&gdpr_consent=$&gdpr_pd=$&network=BUYSELLADS HTTP 302
  • https://static.adsafeprotected.com/skeleton.gif?gdpr=$&gdpr_consent=$&gdpr_pd=$&network=BUYSELLADS

21 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
masteringjs.io/
Redirect Chain
  • https://www.masteringjs.io/
  • https://masteringjs.io/
12 KB
3 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://masteringjs.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
4d679fb3bc18db9118813f1c3f16ed6ef5b78610b6f858a13c1279cf1d339ae3
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

:method
GET
:authority
masteringjs.io
: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

cache-control
public, max-age=0, must-revalidate
content-type
text/html; charset=UTF-8
date
Fri, 19 Mar 2021 17:15:59 GMT
etag
"27caf7c9ee485c09296e9a99da43bbd9-ssl-df"
strict-transport-security
max-age=31536000
content-encoding
br
content-length
2651
age
40239
server
Netlify
vary
Accept-Encoding
x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946409

Redirect headers

cache-control
public, max-age=0, must-revalidate
content-length
38
content-type
text/plain
date
Sat, 20 Mar 2021 04:26:38 GMT
strict-transport-security
max-age=31536000
age
0
server
Netlify
location
https://masteringjs.io/
x-nf-request-id
ab084766-5a5b-415b-a7dd-efeb8a665fd4-10017528
style.css
masteringjs.io/assets/ 		5 KB
1 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://masteringjs.io/assets/style.css
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
19b3084eeeae7a7cf71eba51f8f015e19d7777f394fca099e9a2b34942d9a4a9
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946437
date
Fri, 19 Mar 2021 17:15:59 GMT
content-encoding
br
server
Netlify
age
40240
etag
"3512ffc6106d7335e812f16fe9688bfd-ssl"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
1257
home.css
masteringjs.io/assets/ 		2 KB
625 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://masteringjs.io/assets/home.css
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
06da5c6eb63c24cdf52ce4ad4e0833b8af7677f19edaa3dda49c606328f148fa
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946438
date
Fri, 19 Mar 2021 17:15:59 GMT
content-encoding
br
server
Netlify
age
40240
etag
"3f2b7218869b8c327ea1637770aa9059-ssl"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
518
css
fonts.googleapis.com/ 		7 KB
833 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Montserrat:300,400,700|Inconsolata:400,700
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:82a::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
aee15291f73282dc5b0ba688e9d8b5a7dd04240cf6e9585cfcb3eec69e21fe4e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Referer
https://masteringjs.io/
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
content-encoding
gzip
x-content-type-options
nosniff
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"
x-xss-protection
0
last-modified
Sat, 20 Mar 2021 04:26:38 GMT
server
ESF
date
Sat, 20 Mar 2021 04:26:38 GMT
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Sat, 20 Mar 2021 04:26:38 GMT
logo.svg
masteringjs.io/assets/ 		9 KB
1 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://masteringjs.io/assets/logo.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
c093b922d1151abd1f98624864ed47465f25717e16ff197d2fd6f1a3405a1ac2
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946439
date
Fri, 19 Mar 2021 17:15:59 GMT
content-encoding
br
server
Netlify
age
40240
etag
"ee3e45fa06453af8b95253b8bb6103d9-ssl"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
1214
carbon.js
cdn.carbonads.com/ 		16 KB
6 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn.carbonads.com/carbon.js?serve=CE7DLKQY&placement=masteringjsio
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
23.111.10.140 , United States, ASN33438 (HIGHWINDS2, US),
Reverse DNS
Software
NetDNA-cache/2.2 /
Resource Hash
8d15dbf2c40e71d823c65399aeaaea3ec2a9149db76226a1c17afa8ccf9a9779

Request headers

Referer
https://masteringjs.io/
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
Sat, 20 Mar 2021 04:26:39 GMT
Content-Encoding
gzip
Last-Modified
Thu, 04 Feb 2021 15:06:14 GMT
Server
NetDNA-cache/2.2
ETag
W/"3e41-5ba840b756246"
Vary
Accept-Encoding
X-Cache
HIT
Content-Type
application/javascript
Transfer-Encoding
chunked
Connection
keep-alive
laptops.jpeg
s3.amazonaws.com/codebarbarian-images/ 		120 KB
121 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://s3.amazonaws.com/codebarbarian-images/laptops.jpeg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
52.217.82.190 Ashburn, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
s3-1.amazonaws.com
Software
AmazonS3 /
Resource Hash
39ae324b7c8d103aa8ad935168ec2bdf3bea2861045759073a730e5d6661bf28

Request headers

Referer
https://masteringjs.io/
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
Sat, 20 Mar 2021 04:26:40 GMT
Last-Modified
Fri, 26 Apr 2019 16:12:45 GMT
Server
AmazonS3
x-amz-request-id
JVFF4E1SS5XEXBVJ
ETag
"e130f45c7cac7bfa2037b4116922b276"
Content-Type
image/jpeg
Accept-Ranges
bytes
Content-Length
123233
x-amz-id-2
bJbB2lLGE3hmFyddTTX8ruSpPuWu8wSAE4/53kXy8GfZAFXw+3ZkefTY5uUR8Ur3jX+gccr3ZC4=
express-transparent.svg
masteringjs.io/assets/ 		3 KB
1 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://masteringjs.io/assets/express-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
bd000c86db227f413ce8d5b2e71d284738bc7dc1f02f61d7b66f12c32548a6f3
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/assets/home.css
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946458
date
Fri, 19 Mar 2021 17:15:59 GMT
content-encoding
br
server
Netlify
age
40240
etag
"49f5b2b091bbc521c6bd25466de25867-ssl"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
1388
mongoose-transparent.svg
masteringjs.io/assets/ 		6 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://masteringjs.io/assets/mongoose-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
b9931010047cc15c047258b53bf510de677dbb1c252e18afc6645e01a3f5455e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/assets/home.css
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946459
date
Fri, 19 Mar 2021 17:15:59 GMT
content-encoding
br
server
Netlify
age
40240
etag
"761e7a34dc73bd93e324562414e2d83d-ssl"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
2677
vue-transparent.svg
masteringjs.io/assets/ 		481 B
586 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://masteringjs.io/assets/vue-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
b6d7fce3a4b862789b6305af93fb88732970238ef7209046166ba48c38262cb0
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://masteringjs.io/assets/home.css
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

x-nf-request-id
ae31cbf6-a321-4659-87fb-9c02bc869557-5946461
date
Fri, 19 Mar 2021 17:15:59 GMT
server
Netlify
age
40240
etag
"1d73335c6efa216cd0c435d7f0188e58-ssl"
strict-transport-security
max-age=31536000
content-type
image/svg+xml
cache-control
public, max-age=0, must-revalidate
accept-ranges
bytes
content-length
481
http-transparent.svg
masteringjs.io/assets/ 		1 KB
669 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://masteringjs.io/assets/http-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
Reverse DNS
52.14.198.104.bc.googleusercontent.com
Software
Netlify /
Resource Hash
601049a456cbea512ce145512094b75b385b657936367dca3ec5b3afd4336bf9
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
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content-encoding
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accept-ranges
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content-length
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792 B 		Image
General
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Full URL
https://masteringjs.io/assets/webpack-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
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Request headers

Referer
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User-Agent
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Response headers

x-nf-request-id
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server
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2 KB 		Image
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Full URL
https://masteringjs.io/assets/node-transparent.svg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/assets/home.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
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Request headers

Referer
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User-Agent
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Response headers

x-nf-request-id
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date
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content-encoding
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accept-ranges
bytes
content-length
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eslint-transparent.svg
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Full URL
https://masteringjs.io/assets/eslint-transparent.svg
Requested by
Host: masteringjs.io
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Protocol
H2
Security
TLS 1.3, , AES_256_GCM
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Request headers

Referer
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User-Agent
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Response headers

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date
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server
Netlify
age
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accept-ranges
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mocha-transparent.svg
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3 KB 		Image
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Full URL
https://masteringjs.io/assets/mocha-transparent.svg
Requested by
Host: masteringjs.io
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Protocol
H2
Security
TLS 1.3, , AES_256_GCM
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104.198.14.52 The Dalles, United States, ASN15169 (GOOGLE, US),
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Request headers

Referer
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User-Agent
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content-encoding
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accept-ranges
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https://g0a3nbw0xa.execute-api.us-east-1.amazonaws.com/prod/track
Protocol
H2
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54.86.159.28 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Request headers

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*/*
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Access-Control-Request-Headers
content-type
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x-amzn-requestid
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*
access-control-allow-headers
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track
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General
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Full URL
https://g0a3nbw0xa.execute-api.us-east-1.amazonaws.com/prod/track
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
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Server
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Request headers

Referer
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Response headers

date
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x-amzn-requestid
4850d1c0-6b3a-4ca6-8599-5de74ec85acb
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x-amzn-remapped-connection
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srv.carbonads.net/ads/ 		2 KB
1 KB 		Script
General
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https://srv.carbonads.net/ads/CE7DLKQY.json?segment=placement:masteringjsio&callback=_carbonads_go
Requested by
Host: cdn.carbonads.com
URL: https://cdn.carbonads.com/carbon.js?serve=CE7DLKQY&placement=masteringjsio
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
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Software
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Request headers

Referer
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User-Agent
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Response headers

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*
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Content-Encoding
gzip
Server
//srv.buysellads.com
Content-Length
993
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23 KB 		Image
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https://cdn4.buysellads.net/uu/1/84601/1614278582-12-AZR_YG-MachineLearning-NA-3_USA_1200x627_NAT_AZR-Direct_EN_Trial_Standard_SBAN_NA_Lifestyle_Statement.jpeg
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
94.31.29.32 , United Kingdom, ASN6461 (ZAYO-6461, US),
Reverse DNS
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Software
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Request headers

Referer
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User-Agent
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Response headers

date
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last-modified
Thu, 25 Feb 2021 18:43:03 GMT
server
NetDNA-cache/2.2
x-amz-request-id
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616 B 		Image
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Full URL
https://ad.doubleclick.net/ddm/trackimp/N572608.452584BUYSELLADS.COM/B25081771.290295965;dc_pre=CMSenemDvu8CFeHKuwgdiWUEGg;dc_trk_aid=484716929;dc_trk_cid=143487388;ord=161621440;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;gdpr=$;gdpr_consent=$?
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H3-Q050
Security
QUIC, , AES_128_GCM
Server
142.250.185.198 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
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Software
cafe /
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Request headers

Referer
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User-Agent
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Response headers

pragma
no-cache
date
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x-content-type-options
nosniff
server
cafe
timing-allow-origin
*
p3p
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Redirect headers

pragma
no-cache
date
Sat, 20 Mar 2021 04:26:39 GMT
x-content-type-options
nosniff
server
cafe
p3p
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content-length
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static.adsafeprotected.com/
Redirect Chain
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258 B 		Image
General
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Full URL
https://static.adsafeprotected.com/skeleton.gif?gdpr=$&gdpr_consent=$&gdpr_pd=$&network=BUYSELLADS
Requested by
Host: masteringjs.io
URL: https://masteringjs.io/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Reverse DNS
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Request headers

Referer
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Response headers

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server
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Redirect headers

pragma
no-cache
date
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x-server-name
app02.ie.303net.net
p3p
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location
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cache-control
no-cache
content-length
0
server
nginx

Verdicts & Comments Add Verdict or Comment

16 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 object| xhr object| _carbonads function| _carbonads_go object| _carbon_where string| ignoretargeting function| _bsap_serving_callback object| bgcolor

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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=31536000

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.

ad.doubleclick.net
cdn.carbonads.com
cdn4.buysellads.net
fonts.googleapis.com
g0a3nbw0xa.execute-api.us-east-1.amazonaws.com
masteringjs.io
pixel.adsafeprotected.com
s3.amazonaws.com
srv.carbonads.net
static.adsafeprotected.com
www.masteringjs.io
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