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name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

51/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value600 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0.052

99/100

15%

TTI (Time to Interactive)

Value8.9 s

35/100

10%

rosastronomy.ru

492 ms

rosastronomy.ru

1010 ms

_bundle.min.css

361 ms

custom.css

343 ms

js

68 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 98% of them (56 requests) were addressed to the original Rosastronomy.ru, 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Rosastronomy.ru.

Content Size

312.9 kB

After Optimization

46.6 kB

In fact, the total size of Rosastronomy.ru main page is 312.9 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. 35% of websites need less resources to load. HTML takes 211.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 169.8 kB

Original 211.5 kB
After minification 169.1 kB
After compression 41.8 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. This page needs HTML code to be minified as it can gain 42.4 kB, which is 20% 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 169.8 kB or 80% of the original size.

CSS Optimization

-95%

Potential reduce by 96.5 kB

Original 101.4 kB
After minification 7.2 kB
After compression 4.9 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. Rosastronomy.ru needs all CSS files to be minified and compressed as it can save up to 96.5 kB or 95% of the original size.

Requests Now

After Optimization

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosastronomy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

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

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

High

Serves images with low resolution

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

RU
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rosastronomy.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Rosastronomy.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

rosastronomy.ru

Open Graph data is detected on the main page of Rosastronomy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

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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

rosastronomy.ru

rosastronomy.ru

_bundle.min.css

custom.css

js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

rosastronomy.ru

rosastronomy.ru

_bundle.min.css

custom.css

js

bundle.js

jquery.lazy.min.js

highlight.pack.min.js

angular.mask.min.js

framework.js

handlers.js

preloader.svg

female_star_black.svg

logo_rosastronomy2.svg

top-stars1.webp

main-star.webp

top-stars2.webp

top-stars3.webp

top-stars4.webp

female_star-yellow.svg

bitrix.webp

%7B[%7Bcart.data.stars.data.IMG%7D]%7D

basket-delete.svg

check.svg

%7B[%7Bdoc.data.PICTURE%7D]%7D

%7B[%7Bcart.data.dostavka.data.IMG%7D]%7D

main1-1_1.webp

reason2_1.webp

reason3_1.webp

reason1_1.webp

reason4_1.webp

reason5_1.webp

reason6_1.webp

icomoon.ttf

preloader.svg

female_star_black.svg

logo_rosastronomy2.svg

top-stars1.webp

main-star.webp

top-stars2.webp

top-stars3.webp

top-stars4.webp

female_star-yellow.svg

bitrix.webp

basket-delete.svg