blog.calvinfeng.com Open in urlscan Pro
2606:4700:3033::ac43:9af2 Public Scan

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URL:
https://blog.calvinfeng.com/
Submission: On March 19 via api (March 19th 2024, 8:07:01 am UTC) from US — Scanned from US

Summary HTTP 46 Redirects Links 6 Behaviour Indicators

Summary

This website contacted 2 IPs in 1 countries across 2 domains to perform 46 HTTP transactions. The main IP is 2606:4700:3033::ac43:9af2, located in United States and belongs to CLOUDFLARENET, US. The main domain is blog.calvinfeng.com.
TLS certificate: Issued by E1 on February 25th 2024. Valid for: 3 months.

This is the only time blog.calvinfeng.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
44	2606:4700:303... 2606:4700:3033::ac43:9af2	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	54.184.42.61 54.184.42.61	16509 (AMAZON-02) (AMAZON-02)
46	2

44 2606:4700:3033::ac43:9af2 (United States)

ASN13335 (CLOUDFLARENET, US)

blog.calvinfeng.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 54.184.42.61 (Boardman, United States)

ASN16509 (AMAZON-02, US)
PTR: ec2-54-184-42-61.us-west-2.compute.amazonaws.com

vitals.vercel-insights.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
44	calvinfeng.com blog.calvinfeng.com	282 KB
2	vercel-insights.com vitals.vercel-insights.com — Cisco Umbrella Rank: 17027	331 B
46	2

	Domain	Requested by
44	blog.calvinfeng.com	blog.calvinfeng.com
2	vitals.vercel-insights.com	blog.calvinfeng.com
46	2

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

Domain
github.com
facebook.com
youtube.com
www.linkedin.com
twitter.com

Subject Issuer	Validity	Valid
calvinfeng.com E1	`2024-02-25` - `2024-05-25`	3 months	crt.sh
vercel-insights.com Amazon RSA 2048 M02	`2023-08-23` - `2024-09-19`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://blog.calvinfeng.com/
Frame ID: 85B4ACF1AA1FA11B7D489574ADE784E4
Requests: 46 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Calvinfung Blog

Detected technologies

React (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

<[^>]+data-react

math.js (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

math(?:\.min)?\.js

Page Statistics

46
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

2
Subdomains

2
IPs

1
Countries

282 kB
Transfer

712 kB
Size

0
Cookies

6 Outgoing links

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

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

Search URL Search Domain Scan URL

URL: https://facebook.com/
Title: facebook

Search URL Search Domain Scan URL

URL: https://youtube.com/
Title: youtube

Search URL Search Domain Scan URL

URL: https://www.linkedin.com/
Title: linkedin

Search URL Search Domain Scan URL

URL: https://twitter.com/Twitter
Title: twitter

Search URL Search Domain Scan URL

URL: https://github.com/timlrx/tailwind-nextjs-starter-blog
Title: Tailwind Nextjs Theme

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

46 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
blog.calvinfeng.com/ 30 KB
10 KB 403ms
280ms Document
text/html 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

f5667efb175879320a3e3758231e707defeb7a0b467aac3e9118da017e33a958

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36
accept-language: en-US,en;q=0.9

Response headers

access-control-allow-origin: *
age: 1965151
alt-svc: h3=":443"; ma=86400
cache-control: public, max-age=0, must-revalidate
cf-cache-status: DYNAMIC
cf-ray: 866bf7407b2325a3-MIA
content-disposition: inline
content-encoding: br
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
content-type: text/html; charset=utf-8
date: Tue, 19 Mar 2024 08:06:55 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
permissions-policy: camera=(), microphone=(), geolocation=()
referrer-policy: strict-origin-when-cross-origin
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=71NOTyTZvdo0yCm%2Fx3C71FImSn6FCyhLlLFlROCEIBjyQJ325NYMAesiwT6VeWLvEY4a8CAB6T3gQ1ElcoIf3HL9t7FDb8Jc72CUcWa9R7Ev9WPQNfeEeSrrZzu39ImFzLphvogd6k8Su6Fxzp4jupi1"}],"group":"cf-nel","max_age":604800}
server: cloudflare
strict-transport-security: max-age=31536000; includeSubDomains
x-content-type-options: nosniff
x-dns-prefetch-control: on
x-frame-options: DENY
x-matched-path: /
x-vercel-cache: HIT
x-vercel-id: iad1::u::7l8d8-1710835614879-048a576111e4

GET
H2 200 84f9bc5a95b29245.css
blog.calvinfeng.com/_next/static/css/ 66 KB
12 KB 138ms
135ms Stylesheet
text/css 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/css/84f9bc5a95b29245.css

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

b65f929fe3bfc6985bf0104daae9fb73b2e8f5bf27f555ef162056385e29b049

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
x-dns-prefetch-control: on
content-disposition: inline; filename="84f9bc5a95b29245.css"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::bdkjm-1710835615169-111c19e26576
server: cloudflare
x-matched-path: /_next/static/css/84f9bc5a95b29245.css
etag: W/"ef7992d72bd6efd33da4d906d7be3955"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=VCmqHsg%2FIdGwNCS5JCemU53FUCS6mxEz%2Fvi1A%2FT8Dlt08fuehGAlG2zsj%2BcGUposoBGrjUgK7aQSg2DARLH%2FnOm4gaOYVdTeQ6XmXCO9g4Qp0iARplc%2FAud%2FJBVShdhO7b9ySS%2F4OyRqiMe%2B1R%2BZMaei"}],"group":"cf-nel","max_age":604800}
content-type: text/css; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf7424c9e25a3-MIA

GET
H2 200 webpack-62626b77b850134e.js Show response
blog.calvinfeng.com/_next/static/chunks/ 3 KB
2 KB 134ms
132ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/webpack-62626b77b850134e.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

2d1fbf19b6c4b122ad828928310e37dab2cd91a724ffe5d4bd298dae2a16a982

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
x-dns-prefetch-control: on
content-disposition: inline; filename="webpack-62626b77b850134e.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::mpvgk-1710835615168-0aa2d61a8af5
server: cloudflare
x-matched-path: /_next/static/chunks/webpack-62626b77b850134e.js
etag: W/"865f9f14de1f1304522a62a2132e16b6"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=2KTiDct4oe%2FIXLd5zk3LODbqDrN7mK%2F1V1EAPbX%2B5%2BNzrxw5jhUJXCYTzKPaPTIguHQ5h2Fmhl31%2FRCLIqwfRzTuDX13RyuPNQuLEZmNAGT%2BO%2FE3tgfNiYSpHbbTPk%2Bv%2FSSUUMm8YPWintMRrlHzPuQi"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf7424ca025a3-MIA

GET
H2 200 main-10ac5bda6cee6aac.js Show response
blog.calvinfeng.com/_next/static/chunks/ 126 KB
37 KB 154ms
145ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/main-10ac5bda6cee6aac.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

26972e1e3791907181335337f145dd67c8a36065d15f42a04604a3d752701848

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
x-dns-prefetch-control: on
content-disposition: inline; filename="main-10ac5bda6cee6aac.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::nrdjb-1710835615215-fc88c32e64d9
server: cloudflare
x-matched-path: /_next/static/chunks/main-10ac5bda6cee6aac.js
etag: W/"6effebc22e42f330f0d4ad8231ba4a70"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=ueJIlJaaYw5E%2BFTlADZmjteDmWjmA2uv2DQ7sYmT%2BMRBGbCiHLN3k4pOmk2jje3142ju4ggSGZr%2BbhSacwzxEfPf01IrNtALqyBg1KqkT8sPDP52hyEQ3%2Fn4GNMiJ4biBbd4QOLbqYURC0VD4x8nUllT"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf7429cbe25a3-MIA

GET
H2 200 _app-5e8cf07505d78d2a.js Show response
blog.calvinfeng.com/_next/static/chunks/pages/ 36 KB
14 KB 144ms
136ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/pages/_app-5e8cf07505d78d2a.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

658242ff6a2c7fe8bee7f70ffcf431c84df349715c4909ea92c694d7749f2e3b

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
x-dns-prefetch-control: on
content-disposition: inline; filename="_app-5e8cf07505d78d2a.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::d68gz-1710835615215-5ad0723f4ce2
server: cloudflare
x-matched-path: /_next/static/chunks/pages/_app-5e8cf07505d78d2a.js
etag: W/"773d3079ccde55d9c78eca3d0be6ff8a"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=9Rgql8whvPSyKMugEZ8ZA0LEbEsqN506nQkb3TKQk7a68TJwPAmQpt1tvP3nStSnVPb8EmplG9rUTOMjGrgw5DpPa05OKObp3NGC13pr4eQl72k7wC5WWL1wJQ22t7QF8NYXpzFVGhJXXKsIUdRPHwdS"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf7429cc025a3-MIA

GET
H2 200 index-1c2a649a750f13b5.js Show response
blog.calvinfeng.com/_next/static/chunks/pages/ 17 KB
7 KB 143ms
135ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/pages/index-1c2a649a750f13b5.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

5b32716f37f6aec5381edfe83083f80da1e2cbfbd0d950355994c0f9eb8309a1

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
x-dns-prefetch-control: on
content-disposition: inline; filename="index-1c2a649a750f13b5.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::5vl9k-1710835615215-ac6388b1b6f0
server: cloudflare
x-matched-path: /_next/static/chunks/pages/index-1c2a649a750f13b5.js
etag: W/"2137d118654d7537f2f36a83858bdd08"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=2uQdpiVYXaENssvmsOsiNqwio%2BF02z6AiIyp6GRrF4K3YGD%2ByIbtsp7CuW8qlL5cAovJyu8IHDBiZj9WumVhB5AFX0c0AQNwouePJp7GvM2dGmwCTAj%2FGozC6iH6EETeZ66hbkkA5p5n5GyfgcXxkyoJ"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf7429cc125a3-MIA

GET
H2 200 _buildManifest.js Show response
blog.calvinfeng.com/_next/static/Yn-deFBs-xxQHiQDgKINM/ 1 KB
1 KB 136ms
129ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/Yn-deFBs-xxQHiQDgKINM/_buildManifest.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

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Resource Hash

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Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 344872
x-dns-prefetch-control: on
content-encoding: br
content-disposition: inline; filename="projects-3683cab23fa2c04a.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::zw6fg-1710490743018-9337ce4e611c
server: cloudflare
x-matched-path: /_next/static/chunks/pages/projects-3683cab23fa2c04a.js
etag: W/"d9a36473a403362dc0f712b3293899e2"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=IActarxkuMwHLSWg8hL%2FdHar07hj5Xz7mxvKu%2BjBM4IbzPP7N8tuStZDbuvsIZZxzKEYdZXs7EO1bc88qJn%2BPUvo1d4xIa%2FFTJ9Qu3x8fP2pGjQasV%2FfT8KbJ67YvqharYp0vOQNYn7WHk0ePnit6uJ7"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf74508162876-MIA

GET
H3 200 blog-db7ee1142acaa67b.js Show response
blog.calvinfeng.com/_next/static/chunks/pages/ 16 KB
7 KB 46ms
45ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/pages/blog-db7ee1142acaa67b.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/_next/static/chunks/main-10ac5bda6cee6aac.js

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

940a9a19fcf2753e789105d1b0d1cf94127213a7c0768dfe8ee981a5d28f7938

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 0
x-dns-prefetch-control: on
content-encoding: br
content-disposition: inline; filename="blog-db7ee1142acaa67b.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::sn2jb-1710835615462-d0fdd0ed0b2d
server: cloudflare
x-matched-path: /_next/static/chunks/pages/blog-db7ee1142acaa67b.js
etag: W/"8a8db12d62c31d9f6b2695fb70b0cd73"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=vsD7zP%2FyzYw0bwvkRNVGSDQicrMTMSTth3ncifuTaKnikQvd4s3u%2BYDen2EucliSDJl6eOfw8i244z49oDXlfN2yL3PHATG3OcuPDMO6Juw5PPNb5osKz3AMV9kE%2BgCZsj4SWtkWKK%2Be%2B%2FET%2Bt8kKWgJ"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf745081d2876-MIA

GET
H3 200 about-6f9b87d7fe786883.js Show response
blog.calvinfeng.com/_next/static/chunks/pages/ 559 B
1 KB 43ms
42ms Script
application/javascript 2606:4700:3033::ac43:9af2
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://blog.calvinfeng.com/_next/static/chunks/pages/about-6f9b87d7fe786883.js

Requested by

Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/_next/static/chunks/main-10ac5bda6cee6aac.js

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:3033::ac43:9af2 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

47eadc979d7a5a3f839df7c1fd778f2c3b9c1b12b89e6e64c1923d84652b0a94

Security Headers

Name	Value
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

accept-language: en-US,en;q=0.9
Referer: https://blog.calvinfeng.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 0
x-dns-prefetch-control: on
content-encoding: br
content-disposition: inline; filename="about-6f9b87d7fe786883.js"
alt-svc: h3=":443"; ma=86400
referrer-policy: strict-origin-when-cross-origin
x-vercel-id: iad1::q6nfg-1710835615470-874189cf2a8a
server: cloudflare
x-matched-path: /_next/static/chunks/pages/about-6f9b87d7fe786883.js
etag: W/"522a9df2cafec11b7e02d6e30fc25f3b"
x-vercel-cache: HIT
x-frame-options: DENY
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=uoHVCZh64jaQb5PlDLesLK%2BpMGLxc3%2F7rUCxzoG4vOG76n0yG94pgm7sz%2FhwBV%2FXeJteV4wivrHxND7OXZBfyl0z5ojHU49GlXgcL%2FXlTkTrfTvxXJfxGjU0%2FpHkQK9ONxIAXnhqw2Cn2GR1GYwUuGGj"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
permissions-policy: camera=(), microphone=(), geolocation=()
vary: Accept-Encoding
cf-ray: 866bf74538312876-MIA

POST
H2 200 vitals
vitals.vercel-insights.com/v1/ 2 B
165 B 117ms
115ms Ping
text/plain 54.184.42.61
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://vitals.vercel-insights.com/v1/vitals
Requested by: Host: blog.calvinfeng.com
URL: https://blog.calvinfeng.com/_next/static/chunks/main-10ac5bda6cee6aac.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.184.42.61 Boardman, United States, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-54-184-42-61.us-west-2.compute.amazonaws.com
Software: /
Resource Hash: 565339bc4d33d72817b583024112eb7f5cdf3e5eef0252d6ec1b9c9a94e12bb3

Request headers

Referer: https://blog.calvinfeng.com/
accept-language: en-US,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36
Content-Type: application/x-www-form-urlencoded

Response headers

date: Tue, 19 Mar 2024 08:06:55 GMT
x-ratelimit-reset: 60
x-ratelimit-limit: 1000
cross-origin-resource-policy: cross-origin
content-length: 2
x-ratelimit-remaining: 999
content-type: text/plain; charset=utf-8

Verdicts & Comments Add Verdict or Comment

10 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
Content-Security-Policy	default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' giscus.app; style-src 'self' 'unsafe-inline'; img-src * blob: data:; media-src 'none'; connect-src *; font-src 'self'; frame-src giscus.app
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

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.

blog.calvinfeng.com
vitals.vercel-insights.com
2606:4700:3033::ac43:9af2
54.184.42.61
0b371163dc5478ab4bb7f2b97f054aecbe9cb6df4ad2c27326058828cf0d04f9
15a8ca007b93835a3aa30b4a9316796ccf58886ccf396b4e2f11590aa28e8f94
20671f3379af2ef0698827cdf7dcc6180f85cffda8c751d61849f8b8c96e1eba
2595496fe48df6fcf9b1bc57c29a744c121eb4dd11566466bc13d2e52e6bbcc8
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2d1fbf19b6c4b122ad828928310e37dab2cd91a724ffe5d4bd298dae2a16a982
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47eadc979d7a5a3f839df7c1fd778f2c3b9c1b12b89e6e64c1923d84652b0a94
48a2913c8280f0641aa59cd137dafeb06bb6f0b2f4b802f682bb5a210e97f822
5382dc8096ddcf5844fece0d6d319dbf3a30b129ae37433bda00da462e1f2b64
565339bc4d33d72817b583024112eb7f5cdf3e5eef0252d6ec1b9c9a94e12bb3
5b32716f37f6aec5381edfe83083f80da1e2cbfbd0d950355994c0f9eb8309a1
5c89e57990d6b18dcd58b9f8f907ccdaa41d6fda07bb67b397d9409ecf981f6e
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658242ff6a2c7fe8bee7f70ffcf431c84df349715c4909ea92c694d7749f2e3b
68db669ca11d4f8ea47d3fab4b6d8775d8c44f24548f1d7d053f598de61464c0
733cceb090eac543d1959842fa1081556c97924dd9f2bbd6a6fb16bc950d6861
750a469d97a45e7b315b7a44a4ee41e615aca938544cf7199b681785a993a8ec
7cbaa4e5e25246583d7b11b64ee470035b96d8edeae80e57cf1c577591fdc73b
7f0c2e76452ee4a22e5d5726aea6949ee029e960e5f8c57ab7b6761ebe5866af
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940a9a19fcf2753e789105d1b0d1cf94127213a7c0768dfe8ee981a5d28f7938
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ac7130181f7c47d7437cd845bbf9772efa0232c7420ea29400e52a9e2d2a86f6
b65f929fe3bfc6985bf0104daae9fb73b2e8f5bf27f555ef162056385e29b049
bb33d30ef2a31e98c7ec7bc25359c32046da21a62aca8ae31f4b02c6204623b7
c4155eae49bc50a8e5f64e63815b067b2af1bd06b6bc1527653aeda30228465e
de5341313a4dc5d982ca50ae4a491e84bc5e80b0f439d87f05fc3973c1b7e59a
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f5667efb175879320a3e3758231e707defeb7a0b467aac3e9118da017e33a958

blog.calvinfeng.com Open in urlscan Pro 2606:4700:3033::ac43:9af2 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Detected technologies

Page Statistics

46 Requests

100 %HTTPS

50 %IPv6

2 Domains

2 Subdomains

2 IPs

1 Countries

282 kBTransfer

712 kBSize

0 Cookies

6 Outgoing links

Redirected requests

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

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blog.calvinfeng.com Open in urlscan Pro
2606:4700:3033::ac43:9af2 Public Scan

Screenshot
Live screenshot

Full Image

46
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

2
Subdomains

2
IPs

1
Countries

282 kB
Transfer

712 kB
Size

0
Cookies

46 HTTP transactions
0 data transactions