lwj.dev Lwj.dev

   
Learn With Jason Season 8

Domain Summary

What IP addresses does Lwj.dev resolve to?

• Lwj.dev resolves to the IP addresses 3.33.186.135.

Where are Lwj.dev servers located in?

• Lwj.dev has servers located in United States.

lwj.dev Profile

Title:Learn With Jason Season 8 Description:learn from the web’s leading experts. build something new. grow your career. let’s do it together.
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What technologies does lwj.dev use?

These are the technologies used at lwj.dev. lwj.dev has a total of 7 technologies installed in 7 different categories.
Static Site Generator
Astro Astro
JavaScript Frameworks
Astro Astro
CDN
Cloudinary Cloudinary
Netlify Netlify
Analytics
Fathom Fathom
Security
HSTS HSTS
PaaS
Netlify Netlify
Miscellaneous
Open Graph Open Graph
PWA PWA

lwj.dev Traffic Analysis

There's no enough data about lwj.dev traffic.
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Monthly Visits n/a
Pages per Visit n/a
Visit duration n/a
Bounce Rate n/a
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Avg. visit duration:
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Bounce rate:
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HypeRank:
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*All traffic values are estimates only.
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SEMrush is a complete on line advertising and marketing platform that gives a extensive variety of gear and functions to help companies and entrepreneurs in enhancing their on line visibility and optimizing their virtual advertising and marketing strategies.
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Domain:
  lwj.dev
Rank:
(Rank based on keywords, cost and organic traffic)
  n/a
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  0
Organic Traffic:
(Number of visitors coming from top 20 search results)
  0
Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
  $0.00
Full SEMrush Report >>

Ad Experience Report ▼

Summary of the ad experience rating of a website for a specific platform.

Mobile summary

Root domain:
lwj.dev
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Desktop summary

Root domain:
lwj.dev
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Abusive Experience Report ▼

Summary of the abusive experience rating of a website.
Root domain:
lwj.dev
Enforcement:
(Chrome is not preventing your site from opening new windows or tabs.)
Off
Status:
(The status of the site reviewed for the abusive experiences.)
Not reviewed

Where is lwj.dev hosted? ▼

Lwj.dev may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
3.33.186.135
ASN:
AS16509 
ISP:
Amazon.com, Inc. 
Server Location:

United States, US
 

Other sites hosted on 3.33.186.135

How fast does lwj.dev load? ▼

The average loading time of lwj.dev is 821 ms. The Desktop speed index is 95 and mobile speed index is 82.
Average Load Time:
821 ms

Page Speed (Google PageSpeed Insights) - Desktop

95
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a FAST speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)2ms 94% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 94% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 3% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 3%
Time To First Byte (TTFB)720ms 78% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 78% 15% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 15% 6% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 6%
First Contentful Paint (FCP)1.2s 86% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 86% 7% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 7% 5% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 5%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)46ms 96% of loads for this page have a fast (<200ms) Interaction To Next Paint (INP) 96% 1% of loads for this page have an average (200ms ~ 500ms) Interaction To Next Paint (INP) 1% 1% of loads for this page have a slow (>500ms) Interaction To Next Paint (INP) 1%
Largest Contentful Paint (LCP)1.6s 86% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 86% 7% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 7% 6% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 6%

Origin Data

All pages served from this origin have an FAST speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)2ms 94% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 94% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 3% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 3%
Time To First Byte (TTFB)720ms 78% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 78% 15% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 15% 6% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 6%
First Contentful Paint (FCP)1.2s 86% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 86% 7% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 7% 5% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 5%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)46ms 96% of loads for this page have a fast (<200ms) Interaction To Next Paint (INP) 96% 1% of loads for this page have an average (200ms ~ 500ms) Interaction To Next Paint (INP) 1% 1% of loads for this page have a slow (>500ms) Interaction To Next Paint (INP) 1%
Largest Contentful Paint (LCP)1.6s 86% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 86% 7% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 7% 6% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 6%

Lab Data

Speed Index 1.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Font display  
Consider setting to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with . font-display font metric overrides
Largest Contentful Paint image was not lazily loaded  
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading
Total Blocking Time 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Legacy JavaScript  
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support older browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
Use efficient cache lifetimes  
A long cache lifetime can speed up repeat visits to your page. Learn more
Time to Interactive 1.4 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
Duplicated JavaScript  
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Largest Contentful Paint 1.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
First Contentful Paint 0.9 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade
Max Potential First Input Delay 60 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric
INP by phase  
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs

Page Speed (Google PageSpeed Insights) - Mobile

82
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a AVERAGE speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)2ms 94% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 90% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 7% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 7%
Time To First Byte (TTFB)1.0s 78% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 67% 17% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 17% 14% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 14%
First Contentful Paint (FCP)1.7s 86% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 76% 12% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 12% 11% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 11%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interactive To Next Paint (INP)179ms 96% of loads for this page have a fast (<200s) Interactive To Next Paint (INP) 78% 14% of loads for this page have an average (200s ~ 500s) Interactive To Next Paint (INP) 14% 6% of loads for this page have a slow (>500s) Interactive To Next Paint (INP) 6%
Largest Contentful Paint (LCP)2.2s 86% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 79% 10% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 10% 9% of loads for this page have a slow (>4000s) Largest Contentful Paint (LCP) 9%

Origin Data

All pages served from this origin have an AVERAGE speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)2ms 90% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 90% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 7% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 7%
Time To First Byte (TTFB)1.0s 67% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 67% 17% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 17% 14% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 14%
First Contentful Paint (FCP)1.7s 76% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 76% 12% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 12% 11% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 11%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interactive To Next Paint (INP)179ms 78% of loads for this page have a fast (<0.2s) Interactive To Next Paint (INP) 78% 14% of loads for this page have an average (0.2s ~ 0.5s) Interactive To Next Paint (INP) 14% 6% of loads for this page have a slow (>0.5s) Interactive To Next Paint (INP) 6%
Largest Contentful Paint (LCP)2.2s 79% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 79% 10% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 10% 9% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 9%

Lab Data

First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Time to Interactive 4.0 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
Speed Index 3.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
First Contentful Paint 3.2 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Max Potential First Input Delay 60 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric
Legacy JavaScript  
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support older browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
INP by phase  
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
Use efficient cache lifetimes  
A long cache lifetime can speed up repeat visits to your page. Learn more
Largest Contentful Paint 3.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Font display  
Consider setting to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with . font-display font metric overrides
Duplicated JavaScript  
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade

Does lwj.dev use compression? ▼

Website compression is the process of reducing the size of website files, such as HTML, CSS, JavaScript, and image files, to improve website performance and load times. Compressing website files can significantly reduce the amount of data that needs to be transferred from the server to the user's browser, resulting in faster page load times and improved user experience. Files on lwj.dev are reduced by 76%.
lwj.dev use br compression.
Original size: 55.97 KB
Compressed size: 13.27 KB
File reduced by: 42.7 KB (76%)

Google Safe Browsing ▼

Google Safe Browsing is a service provided by Google that helps protect users from visiting websites that may contain malicious or harmful content, such as malware, phishing attempts, or deceptive software.
This site is not currently listed as suspicious

MyWot.com Reputation Ratings

MyWOT (short for "My Web of Trust") is a web-based reputation and rating service that provides users with information about the trustworthiness and safety of websites.
Status:
  SAFE

SSL Checker - SSL Certificate Verify ▼

An SSL (Secure Sockets Layer) certificate is a digital certificate that establishes a secure encrypted connection between a web server and a user's web browser. It provides authentication and encryption, ensuring that data transmitted between the server and the browser remains private and protected. lwj.dev supports HTTPS.
 lwj.dev supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: *.codetv.dev
Organization:
Location:
Issuer: E6
Valid from: May 29 21:35:47 2025 GMT
Valid until: Aug 27 21:35:46 2025 GMT
Authority: CA:FALSE
Keysize:
Common Name: E6
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Mar 13 00:00:00 2024 GMT
Valid until: Mar 12 23:59:59 2027 GMT
Authority: CA:TRUE
Keysize:

Verify HTTP/2 Support ▼

HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency.
 lwj.dev supports HTTP/2
     
Verifying HTTP/2.0 Support. Please wait...

Http Header ▼

HTTP headers are extra portions of records despatched among a consumer (which include an internet browser) and a server at some stage in an HTTP request or response. They offer instructions, metadata, or manipulate parameters for the conversation among the consumer and server. 
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-type: text/plain
date: Thu, 12 Jun 2025 22:07:42 GMT
location: https://www.learnwithjason.dev/
netlify-vary: query
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01JXK2YGNVVA2J81CVSYRBJ4TX

HTTP/2 301 
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-type: text/plain
date: Thu, 12 Jun 2025 22:07:42 GMT
location: https://codetv.dev/series/learn-with-jason
netlify-vary: query
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01JXK2YGRFH9JCTW8H5SY97QRE

HTTP/2 301 
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-type: text/plain
date: Thu, 12 Jun 2025 22:07:43 GMT
location: /series/learn-with-jason/s8
netlify-vary: query
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01JXK2YGXGKC4PFW1GYQMMRXN4

HTTP/2 200 
accept-ranges: bytes
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-encoding: br
content-type: text/html; charset=UTF-8
date: Thu, 12 Jun 2025 22:07:43 GMT
etag: "99fb5427f0a42d62fe2f8b146e64ed3b-ssl-df"
server: Netlify
strict-transport-security: max-age=31536000
vary: Accept-Encoding
x-nf-request-id: 01JXK2YGXR31EJV8B7JDNFZ4ZP

DNS Lookup ▼

DNS entries (Domain Name System) are a critical component of the Internet infrastructure. They act as directories that translate human-readable domain names (such as example.com) to machine-readable IP addresses. DNS records are stored on DNS servers and help forward internet traffic efficiently.
Type Ip Target/Txt TTL
A 15.197.167.90 264
A 3.33.186.135 264