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33 Last Updated: 1 year

Success 78% of passed verification steps
Warning 7% of total warning
Errors 15% of total errors, require fast action



Performance Mobile Score 23%
Best Practices Mobile Score 69%
SEO Mobile Score 100%
Progressive Web App Mobile Score 33%
Page Authority Authority 56%
Domain Authority Domain Authority 43%
Moz Rank 5.6/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 60 Characters
Meta Description 90 Characters
Видеоуроки школьной программы, конспекты, тренажеры, тесты. Все основные предметы и классы
Effective URL 23 Characters
Excerpt Page content
Библиотека видеоуроков по школьной программе ...
Keywords Cloud Density
класс128 абонемент92 просмотра85 необходим84 данных65 персональных61 спасибо39 язык36 сайта26 interneturok24
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
класс 128
абонемент 92
просмотра 85
необходим 84
данных 65
персональных 61
спасибо 39
язык 36
сайта 26
interneturok 24
Google Preview Your look like this in google search result
Видеоуроки школьной программы, конспекты, тренажеры, тесты. Все основные предметы и классы
Robots.txt File Detected
Sitemap.xml File Detected
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: 1970-01-01 / 51 years
Create on: 2010-05-22 / 11 years
Expires on: 2020-05-22 / 8 months 8 days


Page Size Code & Text Ratio
Document Size: ~484.76 KB
Code Size: ~257.37 KB
Text Size: ~227.4 KB Ratio: 46.91%

Estimation Traffic and Earnings

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PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest


Desktop Screenshot


Mobile Screenshot
First Meaningful Paint 3.9 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 161 requests • 9,500 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 134 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 420 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 35.6 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
Page load is not fast enough on mobile networks Interactive at 35.6 s
A fast page load over a cellular network ensures a good mobile user experience
First Contentful Paint (3G) 5612.5 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 100 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
Minify CSS Potential savings of 6 KB
Minifying CSS files can reduce network payload sizes
Tap targets are sized appropriately 100% 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 99.97% 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
Remove unused CSS Potential savings of 89 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 6,419 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Server response times are low (TTFB) Root document took 280 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 1,490 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 1,098 KB
Optimized images load faster and consume less cellular data
Reduce the impact of third-party code Third-party code blocked the main thread for 650 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
Total Blocking Time 1,520 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 3.4 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
Defer offscreen images Potential savings of 4,343 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 13.5 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 9.1 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](
Avoid enormous network payloads Total size was 9,498 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 15.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 2.8 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 23 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
Avoid an excessive DOM size 4,517 elements
A large DOM will increase memory usage, cause longer [style calculations](, and produce costly [layout reflows](

Speed And Optimization Tips

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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
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
Set-Cookie: PHPSESSID=j4gr5iuigl04ufc47fie2pkame; path=/; HttpOnly
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Last-Modified: Tue, 10 Dec 2019 17:18:44GMT
Expires: Tue, 10 Dec 2019 18:18:44 +0100
Cache-Control: max-age=0, must-revalidate, private
Date: Tue, 10 Dec 2019 17:18:44 GMT
X-Powered-By: pimcore
Content-Language: en
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
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