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31 krnl.to Last Updated: 3 months

Success 55% of passed verification steps

Warning 30% of total warning

Errors 15% of total errors, require fast action

Mobile

Performance Desktop Score 98%

Best Practices Desktop Score 100%

SEO Desktop Score 100%

PWA Desktop Score 29%

Performance Mobile Score 68%

Best Practices Mobile Score 100%

SEO Mobile Score 98%

PWA Mobile Score 38%

Page Authority Authority 9%

Domain Authority Domain Authority 5%

Moz Rank 0.9/10

Bounce Rate Rate 0%

Title Tag 10 Characters

// KRNL.TO

Meta Description 167 Characters

Join us on a life-long journey into understanding the internals of systems. We will mainly be focusing around the Windows and Linux internals, but not limited to that.

Effective URL 15 Characters

https://krnl.to

Excerpt Page content

// krnl.to// krnl.to// krnl.toFollowFollowhomenewslettermembersLinux Containers Internals: runcAt this point of our #lci-series, we have seen how to hack around and create containers. In this post, we will introduce some order and standardization. We...

Keywords Cloud Density

internals7 containers6 linux6 read5 anthony3 nandaa3 ishuah2 krnl2 kariuki2 around2

Keyword Consistency Keyword density is one of the main terms in SEO

Keyword	Freq	Title	Desc	Domain	H1	H2
internals	7
containers	6
linux	6
read	5
anthony	3
nandaa	3
ishuah	2
krnl	2
kariuki	2
around	2

Google Preview Your look like this in google search result

// KRNL.TO

https://krnl.to

Join us on a life-long journey into understanding the internals of systems. We will mainly be focusing around the Windows and Linux internals, but not

Robots.txt File Detected

http://krnl.to/robots.txt

Sitemap.xml File Detected

http://krnl.to/sitemap.xml

Page Size Code & Text Ratio

Document Size: ~75.55 KB

Code Size: ~50.13 KB

Text Size: ~25.42 KB Ratio: 33.65%

Social Data

Estimation Traffic and Earnings

Unique Visits

Daily

Pages Views

Daily

Income

Daily

224

Unique Visits

Monthly

399

Pages Views

Monthly

Income

Monthly

2,592

Unique Visits

Yearly

4,704

Pages Views

Yearly

Income

Yearly

Desktop

Properly size images Potential savings of 112 KiB

Serve images that are appropriately-sized to save cellular data and improve load time

Max Potential First Input Delay 70 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task

First Meaningful Paint 0.4 s

First Meaningful Paint measures when the primary content of a page is visible

Network Round Trip Times 30 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Avoids an excessive DOM size 229 elements

A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)

Avoid large layout shifts 1 element found

These DOM elements were most affected by layout shifts. Some layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)

User Timing marks and measures 4 user timings

Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences

JavaScript execution time 0.3 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Largest Contentful Paint element 1,040 ms

This is the largest contentful element painted within the viewport

Initial server response time was short Root document took 300 ms

Keep the server response time for the main document short because all other requests depend on it

Time to Interactive 1.4 s

Time to Interactive is the amount of time it takes for the page to become fully interactive

Minimize third-party usage Third-party code blocked the main thread for 0 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Reduce unused CSS Potential savings of 15 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity

Web app manifest or service worker do not meet the installability requirements 1 reason

Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement

First Contentful Paint 0.4 s

First Contentful Paint marks the time at which the first text or image is painted

Avoid long main-thread tasks 1 long task found

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay

Speed Index 0.9 s

Speed Index shows how quickly the contents of a page are visibly populated

Server Backend Latencies 70 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Total Blocking Time 10 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

Largest Contentful Paint 1.0 s

Largest Contentful Paint marks the time at which the largest text or image is painted

Minimizes main-thread work 0.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

Avoid serving legacy JavaScript to modern browsers Potential savings of 0 KiB

Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers

Serve static assets with an efficient cache policy 5 resources found

A long cache lifetime can speed up repeat visits to your page

Avoids enormous network payloads Total size was 695 KiB

Large network payloads cost users real money and are highly correlated with long load times

Reduce unused JavaScript Potential savings of 106 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity

Mobile

Initial server response time was short Root document took 80 ms

Keep the server response time for the main document short because all other requests depend on it

Largest Contentful Paint element 3,510 ms

This is the largest contentful element painted within the viewport

First Contentful Paint 1.3 s

First Contentful Paint marks the time at which the first text or image is painted

Minimize main-thread work 3.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

Reduce JavaScript execution time 2.5 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Max Potential First Input Delay 550 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task

Reduce unused CSS Potential savings of 16 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity

Total Blocking Time 1,000 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

Tap targets are not sized appropriately 73% appropriately sized tap targets

Interactive elements like buttons and links should be large enough (48x48px), or have enough space around them, to be easy enough to tap without overlapping onto other elements

Avoid long main-thread tasks 13 long tasks found

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay

Serve static assets with an efficient cache policy 5 resources found

A long cache lifetime can speed up repeat visits to your page

Avoids enormous network payloads Total size was 618 KiB

Large network payloads cost users real money and are highly correlated with long load times

Avoids an excessive DOM size 229 elements

Reduce unused JavaScript Potential savings of 105 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity

Avoid serving legacy JavaScript to modern browsers Potential savings of 0 KiB

Time to Interactive 6.1 s

Time to Interactive is the amount of time it takes for the page to become fully interactive

Minimize third-party usage Third-party code blocked the main thread for 240 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Web app manifest or service worker do not meet the installability requirements 1 reason

Server Backend Latencies 150 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Properly size images Potential savings of 44 KiB

Serve images that are appropriately-sized to save cellular data and improve load time

Avoid large layout shifts 2 elements found

These DOM elements were most affected by layout shifts. Some layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)

User Timing marks and measures 4 user timings

Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences

Largest Contentful Paint 3.5 s

Largest Contentful Paint marks the time at which the largest text or image is painted

Document uses legible font sizes 100% legible text

Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px

Speed Index 2.9 s

Speed Index shows how quickly the contents of a page are visibly populated

First Meaningful Paint 1.3 s

First Meaningful Paint measures when the primary content of a page is visible

Network Round Trip Times 40 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you

Title Website

Congratulations! Your title is optimized

Description Website

Warning! Your description is not optimized

Robots.txt

Congratulations! Your site have a robots.txt file

Sitemap.xml

Congratulations! We've found a sitemap file for your website

SSL Secure

Congratulations! Your site have Support to HTTPS

Headings

Warning! Your page not contain any H1 and H2 headings. H1 and H2 headings help indicate the important topics of your page to search engines

Blacklist

Congratulations! Your site is not listed in a blacklist

W3C Validator

Warning! Your site have errors W3C

Accelerated Mobile Pages (AMP)

Warning! Your site not have AMP Version

Domain Authority

Warning! Domain Authority of your website is slow. It is good to have domain authority more than 25.

GZIP Compress

Warning! Your site not is compressed, this can make slower response for the visitors

Favicon

Congratulations! Your website appears to have a favicon.

Broken Links

Congratulations! You not have broken links View links

First 9 Links	Relationship	HTTP Status
// krnl.to	Internal Link	308
http://krnl.to/rss.xml	Internal Link	308
newsletter	Internal Link	308
members	Internal Link	308
http://krnl.to/linux-containers-internals-runc	Internal Link	308
http://krnl.to/linux-containers-internals-cgroups	Internal Link	308
http://krnl.to/linux-containers-internals-namespaces	Internal Link	308
https://krnl.to/linux-containers-internals-chroot-again	Internal Link	200
https://krnl.to/linux-containers-internals-chroot	Internal Link	200

Alexa Rank

99,999,999

Global Rank

99,999,999

Traffic

Search

Domain Available

Domain (TDL) and Typo	Status
krnl.co	Already Registered
krnl.us	Already Registered
krnl.com	Already Registered
krnl.org	Already Registered
krnl.net	Already Registered
knl.to	Available
irnl.to	Available
ornl.to	Available

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server

HTTP/1.1 200 OK
Age: 0
Cache-Control: public, max-age=0, must-revalidate
Connection: keep-alive
Content-Length: 0
Content-Security-Policy: default-src *; script-src * 'unsafe-eval' 'unsafe-inline'; style-src * 'unsafe-inline'; font-src *; img-src * data:
Content-Type: text/html; charset=utf-8
Date: Sat, 27 Jan 2024 04:26:23 GMT
Etag: "37dffjr1rh1np3"
Referrer-Policy: origin-when-cross-origin
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Content-Type-Options: nosniff
X-Frame-Options: deny
X-Matched-Path: /
X-Powered-By: Next.js
X-Vercel-Cache: HIT
X-Vercel-Id: iad1:iad1:iad1::pdx1::fs5lg-1706329584105-87a8bdb5513e

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	krnl.to	76.76.21.21	IN	1741
NS	krnl.to	dns1.registrar-servers.com	IN	1800
NS	krnl.to	dns2.registrar-servers.com	IN	1800
MX	krnl.to	eforward5.registrar-servers.com	IN	1800
MX	krnl.to	eforward4.registrar-servers.com	IN	1800
MX	krnl.to	eforward1.registrar-servers.com	IN	1800
MX	krnl.to	eforward2.registrar-servers.com	IN	1800
MX	krnl.to	eforward3.registrar-servers.com	IN	1800
TXT	krnl.to	v=spf1 include:spf.efwd.registrar-servers.com ~all	IN	1800

Your Website Score is

Similar Ranking

Latest Sites

Top Technologies

31 krnl.to Last Updated: 3 months

Desktop

Mobile

Social Data

Estimation Traffic and Earnings

Desktop

Mobile

Speed And Optimization Tips

Alexa Rank

99,999,999

99,999,999

Domain Available

Information Server

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