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БИБЛИОТЕКА ИРИНЫ ЭЛАНС - ОБРАЗОВАНИЕ И ОБУЧЕНИЕ НАУКЕ ПО ВСЕМ ПРЕДМЕТАМ
student-files.ru

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24 student-files.ru Last Updated: 2 months

Success 55% of passed verification steps
Warning 30% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 100%
Best Practices Desktop Score 92%
SEO Desktop Score 82%
PWA Desktop Score 22%
Performance Mobile Score 96%
Best Practices Mobile Score 92%
SEO Mobile Score 85%
PWA Mobile Score 30%
Page Authority Authority 30%
Domain Authority Domain Authority 19%
Moz Rank 3.0/10
Bounce Rate Rate 0%
charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 71 Characters
БИБЛИОТЕКА ИРИНЫ ЭЛАНС - ОБРАЗОВАНИЕ И ОБУЧЕНИЕ НАУКЕ ПО ВСЕМ ПРЕДМЕТАМ
Meta Description 71 Characters
Библиотека Ирины Эланс - образование и обучение науке по всем предметам
Effective URL 24 Characters
https://student-files.ru
Excerpt Page content
Библиотека Ирины Эланс - образование и обучение науке по всем предметам ...
Keywords Cloud Density
образование16 библиотека12 эланс11 образования9 ирины8 ирина5 также5 учреждения5 процесс5 которые4
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
образование 16
библиотека 12
эланс 11
образования 9
ирины 8
ирина 5
также 5
учреждения 5
процесс 5
которые 4
Google Preview Your look like this in google search result
БИБЛИОТЕКА ИРИНЫ ЭЛАНС - ОБРАЗОВАНИЕ И ОБУЧЕНИЕ НАУКЕ ПО ВСЕ
https://student-files.ru
Библиотека Ирины Эланс - образование и обучение науке по всем предметам
Robots.txt File No Found
Sitemap.xml File Detected
Page Size Code & Text Ratio
Document Size: ~35.21 KB
Code Size: ~13.39 KB
Text Size: ~21.82 KB Ratio: 61.97%

Estimation Traffic and Earnings

0
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0
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Income
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0
Unique Visits
Monthly
0
Pages Views
Monthly
$0
Income
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0
Unique Visits
Yearly
0
Pages Views
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$0
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Desktop

Desktop Screenshot
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
Speed Index 0.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Reduce unused CSS Potential savings of 35 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Avoids enormous network payloads Total size was 640 KiB
Large network payloads cost users real money and are highly correlated with long load times
Includes front-end JavaScript libraries with known security vulnerabilities 5 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
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
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
First Meaningful Paint 0.5 s
First Meaningful Paint measures when the primary content of a page is visible
Serve static assets with an efficient cache policy 31 resources found
A long cache lifetime can speed up repeat visits to your page
Initial server response time was short Root document took 480 ms
Keep the server response time for the main document short because all other requests depend on it
JavaScript execution time 0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Keep request counts low and transfer sizes small 33 requests • 640 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Reduce unused JavaScript Potential savings of 36 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Avoids an excessive DOM size 172 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)
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
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
Time to Interactive 0.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
First Contentful Paint 0.5 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
Eliminate render-blocking resources Potential savings of 210 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Minimizes main-thread work 0.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Cumulative Layout Shift 0.055
Cumulative Layout Shift measures the movement of visible elements within the viewport
Max Potential First Input Delay 30 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Avoid chaining critical requests 4 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
Largest Contentful Paint 0.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

Mobile

Mobile Screenshot
First Meaningful Paint 1.6 s
First Meaningful Paint measures when the primary content of a page is visible
Avoids an excessive DOM size 170 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)
JavaScript execution time 0.2 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
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
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
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
Avoid large layout shifts 4 elements found
These DOM elements contribute most to the CLS of the page.
Speed Index 1.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Serve static assets with an efficient cache policy 30 resources found
A long cache lifetime can speed up repeat visits to your page
Keep request counts low and transfer sizes small 32 requests • 598 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
First Contentful Paint 1.6 s
First Contentful Paint marks the time at which the first text or image is painted
Time to Interactive 3.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Minimizes main-thread work 0.7 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 100 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Reduce unused JavaScript Potential savings of 36 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Avoids enormous network payloads Total size was 598 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Contentful Paint (3G) 3060 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
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
Avoid chaining critical requests 4 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
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Cumulative Layout Shift 0.138
Cumulative Layout Shift measures the movement of visible elements within the viewport
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
Includes front-end JavaScript libraries with known security vulnerabilities 5 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Initial server response time was short Root document took 290 ms
Keep the server response time for the main document short because all other requests depend on it
Avoid long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Tap targets are not sized appropriately 11% 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
Reduce unused CSS Potential savings of 36 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Largest Contentful Paint 1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Eliminate render-blocking resources Potential savings of 680 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 20 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
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

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
Warning! Your title is not optimized
Description Website
Congratulations! Your description is optimized
Robots.txt
Warning! Your site not 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
Congratulations! You are using your H1 and H2 tags in your site
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.

Alexa Rank

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Global Rank

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Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/2 200 
date: Tue, 26 Apr 2022 11:52:13 GMT
content-type: text/html; charset=utf-8
x-frame-options: DENY
vary: Cookie
x-content-type-options: nosniff
referrer-policy: same-origin
cf-cache-status: DYNAMIC
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=GJxpceqKSkC9PWfXdAswljBeUSTm5AuJ%2FTaj7%2BHO6N6Qdd9qr4qEiMvhlSvxzkgAhv1iz%2FYG9CM2gKCuzavLeA6P73Tu9D3vxcki1Qt9%2B6r1Jw4nWztYYxYonxXn6tQdPO3X"}],"group":"cf-nel","max_age":604800}
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
cf-ray: 701f1c68cad57bf5-LAX
content-encoding: gzip
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
DNS Records DNS Resource Records associated with a hostname
View DNS Records
Add extension to Chrome