Tools & Wizards About Us
sinref.ru screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    86% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

sinref.ru

sinref.ru - библиотека онлайн

Page Load Speed

4.2 sec in total

First Response

1.6 sec

Resources Loaded

2.2 sec

Page Rendered

508 ms

sinref.ru screenshot

About Website

Visit sinref.ru now to see the best up-to-date Sinref content for Russia and also check out these interesting facts you probably never knew about sinref.ru

sinref.ru - библиотека онлайн

Visit sinref.ru

Key Findings

We analyzed Sinref.ru page load time and found that the first response time was 1.6 sec and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

sinref.ru performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value4.5 s

72/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

sinref.ru

1569 ms

watch.js

6 ms

analytics.js

92 ms

collect

52 ms

show_ads.js

108 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original Sinref.ru, 38% (5 requests) were made to Pagead2.googlesyndication.com and 31% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Sinref.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 51.8 kB (33%)

Content Size

155.2 kB

After Optimization

103.3 kB

  • HTML
  • JavaScript

In fact, the total size of Sinref.ru main page is 155.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Javascripts take 129.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 19.7 kB

  • Original 25.4 kB
  • After minification 24.6 kB
  • After compression 5.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.7 kB or 77% of the original size.

JavaScript Optimization

-25%

Potential reduce by 32.1 kB

  • Original 129.7 kB
  • After minification 129.6 kB
  • After compression 97.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.1 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (45%)

Requests Now

11

After Optimization

6

  • AJAX
  • Images
  • JavaScript

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sinref. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sinref.ru

sinref.ru

1569 ms

watch.js

watch.js

6 ms

analytics.js

analytics.js

92 ms

collect

collect

52 ms

show_ads.js

show_ads.js

108 ms

ca-pub-2597429067628405.js

ca-pub-2597429067628405.js

349 ms

zrt_lookup.html

zrt_lookup.html

862 ms

show_ads_impl.js

show_ads_impl.js

558 ms

ads

ads

584 ms

osd.js

osd.js

82 ms

ads

ads

528 ms

adsbygoogle.js

adsbygoogle.js

114 ms

ads

ads

541 ms

Accessibility Review

sinref.ru accessibility score

68

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

sinref.ru best practices score

42

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sinref.ru SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sinref.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Sinref.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sinref.ru

Open Graph description is not detected on the main page of Sinref. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: