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Top Technologies

Nginx
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Web Frameworks

14 bestreferat.ru Last Updated: 9 months

Success 63% of passed verification steps
Warning 7% of total warning
Errors 30% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 88%
Best Practices Desktop Score 54%
SEO Desktop Score 91%
Progressive Web App Desktop Score 27%
Performance Mobile Score 70%
Best Practices Mobile Score 62%
SEO Mobile Score 79%
Progressive Web App Mobile Score 52%
Page Authority Authority 0%
Domain Authority Domain Authority 0%
Moz Rank 0.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 27 Characters
BESTREFERAT.RU - , , , ,
Meta Description 0 Characters
NO DATA
Effective URL 26 Characters
https://www.bestreferat.ru
Meta Keywords 1 Detected
Google Preview Your look like this in google search result
BESTREFERAT.RU - , , , ,
https://www.bestreferat.ru
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: 2005-10-05 / 15 years
Expires on: 2020-10-05 / 0 months 16 days

RU-CENTER-RU ,

Nameservers
ns-1049.awsdns-03.org.
ns-1993.awsdns-57.co.uk.
ns-85.awsdns-10.com.
ns-936.awsdns-53.net.
Page Size Code & Text Ratio
Document Size: ~40 B
Code Size: ~19 B
Text Size: ~21 B Ratio: 52.50%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

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

Desktop

Desktop Screenshot
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 203 requests • 1,392 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 59 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 110 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 3.0 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 on simulated mobile network at 16.4 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 30 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
Serve images in next-gen formats Potential savings of 99 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
User Timing marks and measures 1 user timing
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
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
Enable text compression Potential savings of 76 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 13 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 210 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 170 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 5.6 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
Properly size images Potential savings of 3 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 1.4 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.8 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 1,392 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 9.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.4 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 5 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 864 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)
Minify JavaScript Potential savings of 2 KB
Minifying JavaScript files can reduce payload sizes and script parse time

Mobile

Mobile Screenshot
Server response times are low (TTFB) Root document took 40 ms
Time To First Byte identifies the time at which your server sends a response
Enable text compression Potential savings of 71 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Reduce the impact of third-party code Third-party code blocked the main thread for 660 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 890 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 3.2 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 2 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 3.5 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 6.8 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 628 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 5.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.3 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 5 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 868 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 2.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 88 requests • 628 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 32 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 270 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 7.9 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
Estimated Input Latency 80 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
First Contentful Paint (3G) 2460 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Tap targets are not sized appropriately 32% 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 doesn't use legible font sizes 51.85% 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
Serve images in next-gen formats Potential savings of 13 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

Speed And Optimization Tips

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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
Content-Type: text/html; charset=windows-1251
Connection: keep-alive
Date: Fri, 13 Dec 2019 01:32:05 GMT
Server: nginx
Last-Modified: Fri, 13 Dec 2019 02:12:37 GMT
Expires: Fri, 20 Dec 2019 02:12:37 GMT
Cache-Control: max-age=604800
X-Cache: Hit from cloudfront
Via: 1.1 8f8a44665236c177df56aa58b84d84df.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: EWR52-C4
X-Amz-Cf-Id: 40fXhSKK8EwTFGKw8-HT3W2MlnuFK6o9xQ5Pq2V97murLCpt79myOg==
Age: 5198
DNS Records DNS Resource Records associated with a hostname
View DNS Records

Comments

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