2.2 sec in total
139 ms
1.7 sec
457 ms
Welcome to johncarmack.com homepage info - get ready to check John Carmack best content right away, or after learning these important things about johncarmack.com
Founding Senior Software Engineer. johncarmack1984 has 37 repositories available. Follow their code on GitHub.
Visit johncarmack.comWe analyzed Johncarmack.com page load time and found that the first response time was 139 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
johncarmack.com performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value14.9 s
0/100
25%
Value14.7 s
1/100
10%
Value11,890 ms
0/100
30%
Value0.132
81/100
15%
Value31.1 s
0/100
10%
139 ms
70 ms
61 ms
143 ms
93 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Johncarmack.com, 65% (22 requests) were made to Use.typekit.net and 18% (6 requests) were made to Static1.squarespace.com. The less responsive or slowest element that took the longest time to load (587 ms) relates to the external source Static1.squarespace.com.
Page size can be reduced by 101.2 kB (6%)
1.8 MB
1.7 MB
In fact, the total size of Johncarmack.com main page is 1.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 31.4 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 31.4 kB or 72% of the original size.
Potential reduce by 69.8 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. John Carmack images are well optimized though.
Number of requests can be reduced by 3 (23%)
13
10
The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of John Carmack. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
www.johncarmack.com
139 ms
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www.johncarmack.com
143 ms
common-ed8771b6a3d84eb7699e-min.js
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commerce-82e01d4950516749b43e-min.js
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commerce-7f4130fee43d9b486ac93410db2112d3-min.css
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site.css
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0N5A0165-3281722433-O.jpg
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RecordHit
274 ms
0N5A0116-3281722038-O+copy.jpg
378 ms
587 ms
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johncarmack.com accessibility score
johncarmack.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
johncarmack.com SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Johncarmack.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Johncarmack.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
johncarmack.com
Open Graph data is detected on the main page of John Carmack. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: