Lichess.org - SEO Checker - Website Review

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Top Technologies

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Web Frameworks

59 lichess.org Last Updated: 1 year

Success 62% of passed verification steps

Warning 15% of total warning

Errors 23% of total errors, require fast action

Mobile

Performance Desktop Score 99%

Best Practices Desktop Score 85%

SEO Desktop Score 90%

Progressive Web App Desktop Score 73%

Performance Mobile Score 96%

Best Practices Mobile Score 85%

SEO Mobile Score 89%

Progressive Web App Mobile Score 74%

Page Authority Authority 55%

Domain Authority Domain Authority 59%

Moz Rank 5.5/10

Bounce Rate Rate 0%

Charset Encoding

Great, language/character encoding is specified: UTF-8

Title Tag 31 Characters

LICHESS.ORG •--- ONLINE CHESS

Meta Description 162 Characters

Free online chess server. Play chess in a clean interface. No registration, no ads, no plugin required. Play chess with the computer, friends or random opponents.

Effective URL 19 Characters

https://lichess.org

Excerpt Page content

lichess.org •--- Online ChessAccessibility: Enable blind mode lichess.orgPlaylichess.orgCreate a gameTournamentsSimultaneous exhibitionsLearnChess basicsPuzzlesPracticeCoordinatesStudyCoachesWatchLichess TVCurrent gamesStreamersBroadcastsVideo li...

Keywords Cloud Density

lichess12 game7 play6 more6 monthly6 hourly5 players5 arena5 chess4 tips4

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

Keyword	Freq	Title	Desc	Domain	H1	H2
lichess	12
game	7
play	6
more	6
monthly	6
hourly	5
players	5
arena	5
chess	4
tips	4

Google Preview Your look like this in google search result

LICHESS.ORG •--- ONLINE CHESS

https://lichess.org

Free online chess server. Play chess in a clean interface. No registration, no ads, no plugin required. Play chess with the computer, friends or rando

Robots.txt File Detected

http://lichess.org/robots.txt

Sitemap.xml File No Found

http://lichess.org/sitemap.xml

Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system

Updated: 2019-06-01 / 2 years

Create on: 2010-06-14 / 10 years

Expires on: 2020-06-14 / 5 months 20 days

OVH ,FR

Registrar Whois Server: whois.ovh.net

Registrar URL: http://www.ovh.com

Nameservers

DNS200.ANYCAST.ME

NS200.ANYCAST.ME

Page Size Code & Text Ratio

Document Size: ~27.5 KB

Code Size: ~20.08 KB

Text Size: ~7.42 KB Ratio: 26.99%

Estimation Traffic and Earnings

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Technologies

Nginx

Web Servers

PWA - Manifest

lichess.org lichess.org

The web app manifest is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in areas where they would expect to see apps (for example, a mobile device's home screen)

Param name

lichess.org

Param short_name

lichess.org

Param start_url

Param display

standalone

Param background_color

#317EFB

Param theme_color

#161512

Param description

The (really) free, no-ads, open source chess server.

Desktop

Network Round Trip Times 0 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

Estimated Input Latency 10 ms

Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy

Server response times are low (TTFB) Root document took 320 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 0 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Total Blocking Time 0 ms

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

JavaScript execution time 0.1 s

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

Server Backend Latencies 0 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

Speed Index 0.7 s

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

First CPU Idle 0.7 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 159 KB

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

Minimizes main-thread work 0.3 s

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

First Contentful Paint 0.6 s

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

Includes front-end JavaScript libraries with known security vulnerabilities 1 vulnerability detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 6 chains found

The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load

Avoids an excessive DOM size 557 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)

First Meaningful Paint 0.7 s

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

Keep request counts low and transfer sizes small 28 requests • 159 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Uses efficient cache policy on static assets 0 resources found

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

Max Potential First Input Delay 30 ms

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

Time to Interactive 0.7 s

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

Mobile

Server response times are low (TTFB) Root document took 110 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 180 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Total Blocking Time 110 ms

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

JavaScript execution time 0.4 s

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

Defer offscreen images Potential savings of 2 KB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Server Backend Latencies 0 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

Speed Index 2.0 s

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

First CPU Idle 3.0 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 159 KB

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

Minimizes main-thread work 1.5 s

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

First Contentful Paint 2.0 s

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

Includes front-end JavaScript libraries with known security vulnerabilities 1 vulnerability detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 6 chains found

Avoids an excessive DOM size 554 elements

First Meaningful Paint 2.3 s

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

Keep request counts low and transfer sizes small 28 requests • 159 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Uses efficient cache policy on static assets 0 resources found

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

Max Potential First Input Delay 210 ms

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

Time to Interactive 3.2 s

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

Network Round Trip Times 0 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

First Contentful Paint (3G) 3975 ms

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Estimated Input Latency 10 ms

Tap targets are not sized appropriately 71% appropriately sized tap targets

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

Document uses legible font sizes 89.99% 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 And Optimization Tips

Only Registered Users

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

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

HTTP/1.1 200 OK
Server: nginx
Date: Thu, 28 Nov 2019 09:10:37 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Vary: Accept
Expires: 0
Set-Cookie: lila2=00de3e0084b6f61fc00129e2d34b4ce78bb12924-sid=HQgMbnLOhlvblEKiX0CZwV; Max-Age=31536000; Expires=Fri, 27 Nov 2020 09:10:37 GMT; Path=/; Domain=lichess.org; Secure; HTTPOnly
Cache-Control: no-cache, no-store, must-revalidate
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Expect-CT: max-age=31536000, enforce
X-Frame-Options: DENY
Origin-Trial: AspfhO3b9GtquBe/5I43ylqEt1qGmNZL2EcYHQb2u+faCoomm4FVCxxVoG5fDmYKML5qHhQ5HToQQHvt9YrH+gIAAABKeyJvcmlnaW4iOiJodHRwczovL2xpY2hlc3Mub3JnOjQ0MyIsImZlYXR1cmUiOiJQTmFDbCIsImV4cGlyeSI6MTU3NTQxNzU5OX0=
Content-Encoding: gzip

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	lichess.org	37.187.205.99	IN	505
NS	lichess.org	ns200.anycast.me	IN	3599
NS	lichess.org	dns200.anycast.me	IN	3599
MX	lichess.org	mxb.mailgun.org	IN	3599
MX	lichess.org	mxa.mailgun.org	IN	3599
TXT	lichess.org	v=spf1 a include:mailgun.org -all	IN	3599
TXT	lichess.org	google-site-verification=fZ08Imok7kcLaGcJg7BKQExO6vXGgSgsJUsW6JalUCo	IN	3599
TXT	lichess.org	brave-ledger-verification=955beab28d4f981f9bb969fcddb87f49d5b7026c69db092c87bb05691774d985	IN	3599
TXT	lichess.org	google-site-verification=lcne9sTo24rMZhlrGEXB3TtkTnnpZqH_hNo20DezQEc	IN	3599
AAAA	lichess.org	2001:41d0:303:24cc::1	IN	3565

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59 lichess.org Last Updated: 1 year

Desktop

Mobile

Estimation Traffic and Earnings

Sign up for see all features and reviews about this site

Technologies

Nginx

PWA - Manifest

Desktop

Mobile

Speed And Optimization Tips

Sign up for see all features and reviews about this site

Alexa Rank

0

Information Server

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