www.trevorlasn.com Open in urlscan Pro
2a06:98c1:3120::3 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftrevorlasn.com%2Fblog%2Fcommon-causes-of-memory-leaks-in-javascript%2F%3Futm_sou...
Effective URL:
https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Submission: On August 28 via api (August 28th 2024, 11:51:21 am UTC) from US — Scanned from DE

Summary HTTP 24 Redirects Links 7 Behaviour Indicators

Summary

This website contacted 9 IPs in 2 countries across 7 domains to perform 24 HTTP transactions. The main IP is 2a06:98c1:3120::3, located in United States and belongs to CLOUDFLARENET, US. The main domain is www.trevorlasn.com.
TLS certificate: Issued by WE1 on July 30th 2024. Valid for: 3 months.

This is the only time www.trevorlasn.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 1	2606:4700:303... 2606:4700:3033::6815:2af9	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1 11	2a06:98c1:312... 2a06:98c1:3120::3	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2a00:1450:400... 2a00:1450:4001:81c::2008	15169 (GOOGLE) (GOOGLE)
5	2606:4700:20:... 2606:4700:20::681a:43e	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2606:4700::68... 2606:4700::6810:5049	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2620:1ec:29:1... 2620:1ec:29:1::44	8075 (MICROSOFT...) (MICROSOFT-CORP-MSN-AS-BLOCK)
1		() ()
1	20.209.68.33 20.209.68.33	8075 (MICROSOFT...) (MICROSOFT-CORP-MSN-AS-BLOCK)
2	23.96.124.156 23.96.124.156	8075 (MICROSOFT...) (MICROSOFT-CORP-MSN-AS-BLOCK)
24	9

1 2606:4700:3033::6815:2af9 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

tracking.tldrnewsletter.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

11 2a06:98c1:3120::3 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

trevorlasn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
www.trevorlasn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:81c::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 2606:4700:20::681a:43e (United States)

ASN13335 (CLOUDFLARENET, US)

media.ethicalads.io	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
server.ethicalads.io	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6810:5049 (United States)

ASN13335 (CLOUDFLARENET, US)

static.cloudflareinsights.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2620:1ec:29:1::44 (United States)

ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)

www.clarity.ms	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 (None, )

ASN- ()

www.trevorlasn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 20.209.68.33 (Boydton, United States)

ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)

ethicalads.blob.core.windows.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 23.96.124.156 (Washington, United States)

ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)

w.clarity.ms	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
12	trevorlasn.com 1 redirects trevorlasn.com www.trevorlasn.com	123 KB
5	ethicalads.io media.ethicalads.io — Cisco Umbrella Rank: 102062 server.ethicalads.io — Cisco Umbrella Rank: 121073	13 KB
4	clarity.ms www.clarity.ms — Cisco Umbrella Rank: 1114 w.clarity.ms — Cisco Umbrella Rank: 8686	28 KB
1	windows.net ethicalads.blob.core.windows.net — Cisco Umbrella Rank: 148907	31 KB
1	cloudflareinsights.com static.cloudflareinsights.com — Cisco Umbrella Rank: 1223	7 KB
1	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 112	103 KB
1	tldrnewsletter.com 1 redirects tracking.tldrnewsletter.com	506 B
24	7

	Domain	Requested by
11	www.trevorlasn.com	www.trevorlasn.com static.cloudflareinsights.com
3	media.ethicalads.io	www.trevorlasn.com
2	w.clarity.ms	www.clarity.ms
2	server.ethicalads.io	media.ethicalads.io www.trevorlasn.com
2	www.clarity.ms	www.trevorlasn.com www.clarity.ms
1	ethicalads.blob.core.windows.net	www.trevorlasn.com
1	static.cloudflareinsights.com	www.trevorlasn.com
1	www.googletagmanager.com	www.trevorlasn.com
1	trevorlasn.com	1 redirects
1	tracking.tldrnewsletter.com	1 redirects
24	10

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

Domain
server.ethicalads.io
www.ethicalads.io
www.stackredefine.com
carrentalgateway.com
www.linkedin.com
github.com
twitter.com

Subject Issuer	Validity	Valid
trevorlasn.com WE1	`2024-07-30` - `2024-10-28`	3 months	crt.sh
*.google-analytics.com WR2	`2024-07-30` - `2024-10-22`	3 months	crt.sh
ethicalads.io WE1	`2024-07-31` - `2024-10-29`	3 months	crt.sh
cloudflareinsights.com WE1	`2024-07-06` - `2024-10-04`	3 months	crt.sh
www.clarity.ms DigiCert TLS RSA SHA256 2020 CA1	`2023-12-07` - `2024-12-07`	a year	crt.sh
*.blob.core.windows.net Microsoft Azure RSA TLS Issuing CA 03	`2024-03-26` - `2025-03-21`	a year	crt.sh
a.clarity.ms Microsoft Azure RSA TLS Issuing CA 08	`2024-06-23` - `2025-06-18`	a year	crt.sh

This page contains 2 frames:

Primary Page: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Frame ID: FC2CC206AC6D80118279B15E3087B7B5
Requests: 22 HTTP requests in this frame

Frame: https://www.trevorlasn.com/~partytown/partytown-sandbox-sw.html?1724845876270
Frame ID: 226BFF0C9E1E2D1484E9D218D79FBB7C
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Common Causes of Memory Leaks in JavaScript | Trevor Indrek Lasn

Page URL History Show full URLs

https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftrevorlasn.com%2Fblog%2Fcommon-causes-of-memory-leaks-in-jav... HTTP 302
https://trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev HTTP 308
https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev Page URL

Detected technologies

Cloudflare Browser Insights (Analytics) Expand

Overall confidence: 100%
Detected patterns

static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtag/js

Page Statistics

24
Requests

96 %
HTTPS

67 %
IPv6

7
Domains

10
Subdomains

9
IPs

2
Countries

303 kB
Transfer

901 kB
Size

0
Cookies

7 Outgoing links

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

URL: https://server.ethicalads.io/proxy/click/7620/fd60eeea-8eda-4205-90c0-b6c545909647/

Search URL Search Domain Scan URL

URL: https://www.ethicalads.io/advertisers/topics/frontend-web/?ref=ea-image
Title: Ads by EthicalAds

Search URL Search Domain Scan URL

URL: https://www.stackredefine.com/?utm_source=trevorlasn.com
Title: stackredefine.com

Search URL Search Domain Scan URL

URL: https://carrentalgateway.com/?utm_source=trevorlasn.com
Title: carrentalgateway.com

Search URL Search Domain Scan URL

URL: https://www.linkedin.com/in/indrek-lasn-8923b7100/
Title: linkedin

Search URL Search Domain Scan URL

URL: https://github.com/indreklasn
Title: github

Search URL Search Domain Scan URL

URL: https://twitter.com/trevorlasn
Title: x

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.

https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftrevorlasn.com%2Fblog%2Fcommon-causes-of-memory-leaks-in-javascript%2F%3Futm_source=tldrwebdev/1/0100019198b92b03-3fb2b072-647f-4032-bdbf-af75314dff63-000000/5O2FvoXXDdukB77YMMcvEFqqwPGxT3hF9wA-RCfkzLg=368 HTTP 302
https://trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev HTTP 308
https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

24 HTTP transactions
0 data transactions

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

GET
H3

200

Primary Request / Show response
www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/
Redirect Chain

https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftrevorlasn.com%2Fblog%2Fcommon-causes-of-memory-leaks-in-javascript%2F%3Futm_source=tldrwebdev/1/0100019198b92b03-3fb2b072-647f-4032-bdbf-af75314...
https://trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

269 KB
19 KB

200ms
190ms

Document
text/html

2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

c4bdeb33303e73422c8b1f61bf8926f49a7859dc64fad9a41227e0ba85450d35

Security Headers

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

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

access-control-allow-headers: Content-Type
access-control-allow-methods: GET, OPTIONS
access-control-allow-origin: *
age: 71922
alt-svc: h3=":443"; ma=86400
cache-control: public, max-age=0, must-revalidate
cf-cache-status: DYNAMIC
cf-ray: 8ba416a30fb818dc-FRA
content-disposition: inline; filename="common-causes-of-memory-leaks-in-javascript"
content-encoding: br
content-type: text/html; charset=utf-8
cross-origin-resource-policy: same-origin
date: Wed, 28 Aug 2024 11:51:15 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
priority: u=0,i
referrer-policy: strict-origin-when-cross-origin
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=NGGc6AD%2FBqKNgBs2yzrXU66OqQbtY82ULne31a%2BNX3ArvGlB1wIRA78DgmFk08UXwrZU3UjcGTQVgsYmd2vcKCt4oU1bnI5j8cenAmh9Q7KAhxVsdjTHlnCjwbsHnkn%2F1BJxyAmBvgaOvOThnlHfd88%3D"}],"group":"cf-nel","max_age":604800}
server: cloudflare
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-vercel-cache: HIT
x-vercel-id: arn1::wcl2n-1724845875816-02b1ce2da537

Redirect headers

alt-svc: h3=":443"; ma=86400
cache-control: public, max-age=0, must-revalidate
cf-cache-status: DYNAMIC
cf-ray: 8ba416a25f1718dc-FRA
content-type: text/html
date: Wed, 28 Aug 2024 11:51:15 GMT
location: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
priority: u=0,i
refresh: 0;url=https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=EgMKYBEnJIKSlV07MrdJa6Qst3Yxp37O7NIXZeC%2FmmwtSOCnkNtJjo325QyOd%2FwbP%2BA5m44CicwiUiW%2BLeERqGvrmV6edeAajH0EEqMt5mSbhcb7P0WgclHn9zqc3ua6aPXCiQwWYjQRBQCVew%3D%3D"}],"group":"cf-nel","max_age":604800}
server: cloudflare
strict-transport-security: max-age=63072000
x-vercel-id: cdg1::4758f-1724845875629-b15bb28b0db9

GET
H3 200 inter-latin-400-normal.BT1H-PT_.woff2
www.trevorlasn.com/_astro/ 21 KB
22 KB 30ms
30ms Font
font/woff2 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/_astro/inter-latin-400-normal.BT1H-PT_.woff2

Requested by

Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

2301bb030a2bcaa9c763cc4771bd717aac16709c29eaba00673fcbe7cdf99a59

Security Headers

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

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Origin: https://www.trevorlasn.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:15 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 230851
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content-length: 21564
referrer-policy: strict-origin-when-cross-origin
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server: cloudflare
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x-vercel-cache: HIT
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, OPTIONS
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vary: Accept-Encoding
accept-ranges: bytes
cf-ray: 8ba416a468f918dc-FRA
access-control-allow-headers: Content-Type
priority: u=1,i=?0

GET
H3 200 inter-latin-600-normal.B2Ssfs8e.woff2
www.trevorlasn.com/_astro/ 22 KB
23 KB 49ms
47ms Font
font/woff2 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/_astro/inter-latin-600-normal.B2Ssfs8e.woff2

Requested by

Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

3022fadde78fd30c384797bcef8bebc18c96083527a850f62a58d8957a8b208f

Security Headers

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

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Origin: https://www.trevorlasn.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:15 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
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content-length: 22820
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: cdg1::4t5tp-1724615024562-556461da8dc0
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etag: "0bf7eadca131e06ec47943f8b4981f72"
x-vercel-cache: HIT
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, OPTIONS
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cache-control: public, max-age=31536000, immutable
vary: Accept-Encoding
accept-ranges: bytes
cf-ray: 8ba416a468fa18dc-FRA
access-control-allow-headers: Content-Type
priority: u=1,i=?0

GET
H3 200 lora-latin-400-normal.CvHVDnm4.woff2
www.trevorlasn.com/_astro/ 21 KB
21 KB 67ms
65ms Font
font/woff2 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/_astro/lora-latin-400-normal.CvHVDnm4.woff2

Requested by

Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

5aaa941328e6c9b4c140a8dfb8ab73187627cbf522c4b3309c71ec68be0b6325

Security Headers

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

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Origin: https://www.trevorlasn.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:15 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 230850
cross-origin-resource-policy: same-origin
content-disposition: inline; filename="lora-latin-400-normal.CvHVDnm4.woff2"
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content-length: 21108
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: fra1::jkljl-1724615024589-db38d49b4b03
server: cloudflare
etag: "6a24bfe835a2b2e2d8b239f49f06d2f2"
x-vercel-cache: HIT
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, OPTIONS
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vary: Accept-Encoding
accept-ranges: bytes
cf-ray: 8ba416a468fc18dc-FRA
access-control-allow-headers: Content-Type
priority: u=1,i=?0

GET
H3 200 lora-latin-600-normal.DUWh3m6k.woff2
www.trevorlasn.com/_astro/ 21 KB
22 KB 67ms
66ms Font
font/woff2 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/_astro/lora-latin-600-normal.DUWh3m6k.woff2

Requested by

Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

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Security: QUIC, , AES_128_GCM
Server: -, , ASN (),
Reverse DNS
Software: /
Resource Hash: 78d4793a328078f33536a8bcda9812d78ffa356277ec2a0c6eb1a62371f4be7d

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

Cache-Control: no-store
content-type: text/html

GET bd99df62-51a7-4e9f-8c71-0af1969233a8
https://www.trevorlasn.com/ Frame 0
0

GET
H/1.1 200
OK cropped_nDrsgCe.png
ethicalads.blob.core.windows.net/media/images/2024/08/ 31 KB
31 KB 458ms
114ms Image
image/png 20.209.68.33
MICROSOFT-CORP-MS...

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://ethicalads.blob.core.windows.net/media/images/2024/08/cropped_nDrsgCe.png
Requested by: Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_256_GCM
Server: 20.209.68.33 Boydton, United States, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0 /
Resource Hash: be3fef1f1eb628892461cceaa0f1f7deff357b0473497c9f19473483965b78a3

Request headers

Referer: https://www.trevorlasn.com/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

x-ms-lease-status: unlocked
x-ms-blob-type: BlockBlob
Date: Wed, 28 Aug 2024 11:51:16 GMT
Last-Modified: Tue, 20 Aug 2024 15:11:04 GMT
Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0
Content-MD5: 7Er6KoZXN4Uczk76FBGt3Q==
ETag: 0x8DCC12A4F613484
Content-Type: image/png
Access-Control-Allow-Origin: *
x-ms-request-id: 7760e6f2-901e-0051-2940-f9bde7000000
x-ms-version: 2009-09-19
Content-Length: 31278

GET
H2 200 clarity.js Show response
www.clarity.ms/s/0.7.45/ 64 KB
27 KB 47ms
47ms Script
application/javascript 2620:1ec:29:1::44
MICROSOFT-CORP-MS...

General

Check archive.org

Show headers Download Go to

Full URL: https://www.clarity.ms/s/0.7.45/clarity.js
Requested by: Host: www.clarity.ms
URL: https://www.clarity.ms/tag/ni2tqs5cvl
Protocol: H2
Security: TLS 1.3, , AES_256_GCM
Server: 2620:1ec:29:1::44 , United States, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software: /
Resource Hash: 264532af47b2cfb6620970592478c442a0cd429beccead9d062ff5a91284dc15

Request headers

Referer: https://www.trevorlasn.com/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:16 GMT
content-encoding: br
last-modified: Tue, 27 Aug 2024 13:08:46 GMT
etag: W/"0x8DCC699624C65B7"
vary: Accept-Encoding
x-azure-ref: 20240828T115116Z-158f467467f26wfg4qmdpsak1n0000000570000000008rfh
content-type: application/javascript;charset=utf-8
access-control-allow-origin: *
x-ms-request-id: e4e0b33b-701e-0011-639a-f8b46f000000
cache-control: public, max-age=86400
x-cache: TCP_HIT
x-ms-version: 2018-03-28
x-fd-int-roxy-purgeid: 51562430

GET
H2 200 /
server.ethicalads.io/proxy/view/7620/fd60eeea-8eda-4205-90c0-b6c545909647/ 30 B
355 B 150ms
150ms Image
image/svg+xml 2606:4700:20::681a:43e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://server.ethicalads.io/proxy/view/7620/fd60eeea-8eda-4205-90c0-b6c545909647/

Requested by

Host: www.trevorlasn.com
URL: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:43e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

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

Request headers

Referer: https://www.trevorlasn.com/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:16 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
referrer-policy: strict-origin-when-cross-origin
cf-cache-status: DYNAMIC
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin
server: cloudflare
vary: Cookie
x-frame-options: DENY
content-type: image/svg+xml
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=HTszStPxw%2BFacedTKwcKYOjJBBOyrezn46fQp24L2qpZ8RnZbWYIkB4kkZcjnDdIX4xHFfP0tCp9KMwKz6vx%2B%2F5R1X%2BcgCkXMba5StzUMWZmuPZdWstW%2F2eyzWy3Eaag43cqpkLfk9%2FWqw2vwkkxZ6u8"}],"group":"cf-nel","max_age":604800}
x-server: ethicalads0002YO
cf-ray: 8ba416a7df519755-FRA
content-length: 30

POST
H/1.1 204
No Content collect Show response
w.clarity.ms/ 0
282 B 679ms
342ms XHR
text/plain 23.96.124.156
MICROSOFT-CORP-MS...

General

Check archive.org

Show headers Download Go to

Full URL: https://w.clarity.ms/collect
Requested by: Host: www.clarity.ms
URL: https://www.clarity.ms/s/0.7.45/clarity.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 23.96.124.156 Washington, United States, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software: nginx /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Accept: application/x-clarity-gzip
Referer: https://www.trevorlasn.com/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

Access-Control-Allow-Origin: https://www.trevorlasn.com
Date: Wed, 28 Aug 2024 11:51:17 GMT
Access-Control-Allow-Credentials: true
Server: nginx
Connection: keep-alive
Vary: Origin
Request-Context: appId=cid-v1:e55edbbe-e22b-46b4-8313-9ee2a4e71d12

POST
H3 204 rum Show response
www.trevorlasn.com/cdn-cgi/ 0
143 B 25ms
24ms XHR
text/plain 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/cdn-cgi/rum?

Requested by

Host: static.cloudflareinsights.com
URL: https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36
content-type: application/json

Response headers

date: Wed, 28 Aug 2024 11:51:16 GMT
x-content-type-options: nosniff
server: cloudflare
vary: Origin
access-control-max-age: 86400
access-control-allow-methods: POST,OPTIONS
access-control-allow-origin: https://www.trevorlasn.com
x-frame-options: DENY
access-control-allow-credentials: true
cf-ray: 8ba416aab85818dc-FRA

GET
H3 200 favicon-light.svg
www.trevorlasn.com/ 2 KB
1 KB 113ms
113ms Other
image/svg+xml 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/favicon-light.svg

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

9aab5fb12bac495522d2dfe17557006487027b4b2545e08047bdc02febe483be

Security Headers

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

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:17 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: REVALIDATED
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
cross-origin-resource-policy: same-origin
content-disposition: inline; filename="favicon-light.svg"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: fra1::tjcmm-1724615026446-a8d201321523
server: cloudflare
etag: W/"04f15d175a9f426fd05a76e5e8139598"
x-vercel-cache: HIT
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, OPTIONS
content-type: image/svg+xml
access-control-allow-origin: *
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=yypHU6qenTHYKy%2B%2FwpkYL8B%2B7NRtKvWhGbQ4c3yRUhI%2FjtZNeNXacX7S7if979%2F2lJSkca53j12HQ4HiVxMBPm4KVVA8jIS5KX50UspHFKwbnW8NCgJlEA%2B8UCsfLw5tjjnRE1BEA2JhqC8Joi65XmQ%3D"}],"group":"cf-nel","max_age":604800}
cache-control: public, max-age=2678400, must-revalidate
vary: Accept-Encoding
cf-ray: 8ba416aab85b18dc-FRA
access-control-allow-headers: Content-Type
priority: u=1,i

GET
H3 200 favicon-light.svg
www.trevorlasn.com/ 2 KB
0 0ms
0ms Other
image/svg+xml 2a06:98c1:3120::3
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.trevorlasn.com/favicon-light.svg

Protocol

Security

QUIC, , AES_128_GCM

Server

2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

9aab5fb12bac495522d2dfe17557006487027b4b2545e08047bdc02febe483be

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

Referer: https://www.trevorlasn.com/blog/common-causes-of-memory-leaks-in-javascript/?utm_source=tldrwebdev
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date: Wed, 28 Aug 2024 11:51:17 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: REVALIDATED
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-resource-policy: same-origin
content-disposition: inline; filename="favicon-light.svg"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: fra1::tjcmm-1724615026446-a8d201321523
server: cloudflare
etag: W/"04f15d175a9f426fd05a76e5e8139598"
x-vercel-cache: HIT
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, OPTIONS
content-type: image/svg+xml
access-control-allow-origin: *
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=yypHU6qenTHYKy%2B%2FwpkYL8B%2B7NRtKvWhGbQ4c3yRUhI%2FjtZNeNXacX7S7if979%2F2lJSkca53j12HQ4HiVxMBPm4KVVA8jIS5KX50UspHFKwbnW8NCgJlEA%2B8UCsfLw5tjjnRE1BEA2JhqC8Joi65XmQ%3D"}],"group":"cf-nel","max_age":604800}
cache-control: public, max-age=2678400, must-revalidate
vary: Accept-Encoding
cf-ray: 8ba416aab85b18dc-FRA
access-control-allow-headers: Content-Type
priority: u=1,i

POST
H/1.1 204
No Content collect Show response
w.clarity.ms/ 0
282 B 107ms
105ms XHR
text/plain 23.96.124.156
MICROSOFT-CORP-MS...

General

Check archive.org

Show headers Download Go to

Full URL: https://w.clarity.ms/collect
Requested by: Host: www.clarity.ms
URL: https://www.clarity.ms/s/0.7.45/clarity.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 23.96.124.156 Washington, United States, ASN8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US),
Reverse DNS
Software: nginx /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Accept: application/x-clarity-gzip
Referer: https://www.trevorlasn.com/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

Access-Control-Allow-Origin: https://www.trevorlasn.com
Date: Wed, 28 Aug 2024 11:51:17 GMT
Access-Control-Allow-Credentials: true
Server: nginx
Connection: keep-alive
Vary: Origin
Request-Context: appId=cid-v1:e55edbbe-e22b-46b4-8313-9ee2a4e71d12

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain: www.trevorlasn.com
URL: blob:https://www.trevorlasn.com/bd99df62-51a7-4e9f-8c71-0af1969233a8

Verdicts & Comments Add Verdict or Comment

18 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.

0 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.

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; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

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.

ethicalads.blob.core.windows.net
media.ethicalads.io
server.ethicalads.io
static.cloudflareinsights.com
tracking.tldrnewsletter.com
trevorlasn.com
w.clarity.ms
www.clarity.ms
www.googletagmanager.com
www.trevorlasn.com
www.trevorlasn.com

20.209.68.33
23.96.124.156
2606:4700:20::681a:43e
2606:4700:3033::6815:2af9
2606:4700::6810:5049
2620:1ec:29:1::44
2a00:1450:4001:81c::2008
2a06:98c1:3120::3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www.trevorlasn.com Open in urlscan Pro 2a06:98c1:3120::3 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

24 Requests

96 %HTTPS

67 %IPv6

7 Domains

10 Subdomains

9 IPs

2 Countries

303 kBTransfer

901 kBSize

0 Cookies

7 Outgoing links

Page URL History

Redirected requests

24 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

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

Failed requests

Verdicts & Comments Add Verdict or Comment

18 JavaScript Global Variables

0 Cookies

Security Headers

Indicators

www.trevorlasn.com Open in urlscan Pro
2a06:98c1:3120::3 Public Scan

Screenshot
Live screenshot

Full Image

24
Requests

96 %
HTTPS

67 %
IPv6

7
Domains

10
Subdomains

9
IPs

2
Countries

303 kB
Transfer

901 kB
Size

0
Cookies

24 HTTP transactions
0 data transactions