Access drevlit.ru. Drevlit.ru - ДревЛит - библиотека древних рукописей

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value2,070 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.523

15/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

drevlit.ru

523 ms

drevlit.ru

937 ms

index.php

149 ms

index.php

297 ms

index.php

593 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 42% of them (28 requests) were addressed to the original Drevlit.ru, 10% (7 requests) were made to Googleads.g.doubleclick.net and 9% (6 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (987 ms) relates to the external source Mc.yandex.ru.

Content Size

766.2 kB

After Optimization

636.0 kB

In fact, the total size of Drevlit.ru main page is 766.2 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. 60% of websites need less resources to load. Javascripts take 460.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 97.7 kB

Original 127.1 kB
After minification 108.4 kB
After compression 29.4 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. This page needs HTML code to be minified as it can gain 18.7 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 97.7 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 4.3 kB

Original 157.7 kB
After minification 153.4 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Drevlit images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 22.2 kB

Original 460.3 kB
After minification 460.0 kB
After compression 438.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-28%

Potential reduce by 6.0 kB

Original 21.1 kB
After minification 21.1 kB
After compression 15.1 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Drevlit.ru needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 28% of the original size.

Requests Now

After Optimization

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Drevlit. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

RU
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Drevlit.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 Drevlit.ru main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

drevlit.ru

Open Graph description is not detected on the main page of Drevlit. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Drevlit.ru - ДревЛит - библиотека древних рукописей

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

drevlit.ru

drevlit.ru

index.php

index.php

index.php

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

drevlit.ru

drevlit.ru

index.php

index.php

index.php

style.css

engine.css

libs.js

date_get.js

js

context.js

adsbygoogle.js

spacer.gif

logo.jpg

drevlitru.gif

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stariy_tv.jpg

dlet_hd.gif

cse.js

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dlet_csp.gif

dlet_hdline.gif

dlet_catl.gif

show_ads_impl.js

cse_element__ru.js

default+ru.css

default.css

top100.js

hit

tag.js

async-ads.js

branding.png

clear.png

zrt_lookup.html

ads

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