Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

spb-optica.ru

52.206.84.190 02.03.2024 20:00:30

Page Load Speed

1.1 sec in total

First Response

247 ms

Resources Loaded

742 ms

Page Rendered

63 ms

spb-optica.ru screenshot

About Website

Click here to check amazing Spb Optica content for Russia. Otherwise, check out these important facts you probably never knew about spb-optica.ru

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Key Findings

We analyzed Spb-optica.ru page load time and found that the first response time was 247 ms and then it took 805 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

spb-optica.ru performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

spb-optica.ru

247 ms

spb-optica.ru

488 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Spb-optica.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (488 ms) belongs to the original domain Spb-optica.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 359.2 kB (28%)

Content Size

1.3 MB

After Optimization

918.9 kB

In fact, the total size of Spb-optica.ru main page is 1.3 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 989.9 kB which makes up the majority of the site volume.

HTML Optimization

-42%

Potential reduce by 331 B

  • Original 781 B
  • After minification 727 B
  • After compression 450 B

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 331 B or 42% of the original size.

Image Optimization

-14%

Potential reduce by 142.4 kB

  • Original 989.9 kB
  • After minification 847.6 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. Obviously, Spb Optica needs image optimization as it can save up to 142.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 139.0 kB

  • Original 198.9 kB
  • After minification 174.7 kB
  • After compression 59.9 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 139.0 kB or 70% of the original size.

CSS Optimization

-88%

Potential reduce by 77.5 kB

  • Original 88.4 kB
  • After minification 53.6 kB
  • After compression 11.0 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. Spb-optica.ru needs all CSS files to be minified and compressed as it can save up to 77.5 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

spb-optica.ru accessibility score

90

Accessibility Issues

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

spb-optica.ru best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

spb-optica.ru SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Spb-optica.ru can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Spb-optica.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

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