Access gencentre.ru. Международный Генеалогический Центр (центр генеалогических исследований)

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value18.1 s

0/100

10%

TBT (Total Blocking Time)

Value2,800 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

gencentre.ru

521 ms

www.gencentre.ru

592 ms

page_9f94041f729f88b8c0adfbc1aecac128.css

133 ms

template_dc212f494e1f4741829b17c72554e73e.css

427 ms

template_882f3283eb2063a8a7215a2e4dd003ae.js

539 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 70% of them (50 requests) were addressed to the original Gencentre.ru, 7% (5 requests) were made to Upload-af78a903ecb17d6d9a275450f6d9d30d.s3.amazonaws.com and 4% (3 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Gencentre.ru.

Content Size

1.9 MB

After Optimization

1.4 MB

In fact, the total size of Gencentre.ru main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 28.8 kB

Original 37.2 kB
After minification 35.4 kB
After compression 8.5 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 28.8 kB or 77% of the original size.

Image Optimization

-11%

Potential reduce by 167.1 kB

Original 1.5 MB
After minification 1.3 MB

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. Obviously, Gencentre needs image optimization as it can save up to 167.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 139.8 kB

Original 223.6 kB
After minification 214.6 kB
After compression 83.7 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 139.8 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 163.4 kB

Original 194.0 kB
After minification 172.6 kB
After compression 30.7 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. Gencentre.ru needs all CSS files to be minified and compressed as it can save up to 163.4 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gencentre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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 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

Image elements do not have [alt] attributes

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

Missing source maps for large first-party JavaScript

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

High

Tap targets are not sized appropriately

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 Gencentre.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 Gencentre.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

gencentre.ru

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

Международный Генеалогический Центр (центр генеалогических исследований)

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

gencentre.ru

www.gencentre.ru

page_9f94041f729f88b8c0adfbc1aecac128.css

template_dc212f494e1f4741829b17c72554e73e.css

template_882f3283eb2063a8a7215a2e4dd003ae.js

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

gencentre.ru

www.gencentre.ru

page_9f94041f729f88b8c0adfbc1aecac128.css

template_dc212f494e1f4741829b17c72554e73e.css

template_882f3283eb2063a8a7215a2e4dd003ae.js

page_056335c4cf2dd925a9762e58bcffbe25.js

template_styles.css

bar.css

dark.css

default.css

light.css

watch.js

ba.js

spread.php

spread.php

img5.jpg

logo

background.jpg

callback-bg2.png

button.png

button2.png

logo-bg.png

logo.png

border-top-left-corner.png

border-top-left.png

border-top-right-corner.png

border-top-right.png

border-top.png

border-left.png

border-right.png

content-bg-n.jpg

img7.jpg

img6.jpg

img9.jpg

img1.jpg

xoA0vEaqTeI

loading.gif

border-left-top.png

border-right-top.png

border-left-bottom.png

border-right-bottom.png

border-bottom-left-corner.png

border-bottom-right-corner.png