Tools & Wizards About Us

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    19% of websites

deep-diver.ru

Подводное снаряжение для дайвинга и подводной охоты, компрессоры 230, 330 Бар цена купить в Москве скидки распродажа

Page Load Speed

2.8 sec in total

First Response

800 ms

Resources Loaded

1.7 sec

Page Rendered

256 ms

About Website

Click here to check amazing Deep Diver content for Russia. Otherwise, check out these important facts you probably never knew about deep-diver.ru

Скидки, подводное снаряжение для дайвинга подводной охоты, гидрокостюмы и компрессоры высокого давления купить в Москве цена, распродажа. Гидрокостюм, компрессор 200 300 атм, баллон

Visit deep-diver.ru

Key Findings

We analyzed Deep-diver.ru page load time and found that the first response time was 800 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

deep-diver.ru performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.0 s

100/100

25%

SI (Speed Index)

Value1.6 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)

Value1.0 s

100/100

10%

Network Requests Diagram

deep-diver.ru

800 ms

1.css

264 ms

baner.php

512 ms

fon-obratnogo-otscheta.jpg

133 ms

ug_l_v.gif

134 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 92% of them (22 requests) were addressed to the original Deep-diver.ru, 4% (1 request) were made to No-cache.divetop.ru and 4% (1 request) were made to Yandex.ru. The less responsive or slowest element that took the longest time to load (800 ms) belongs to the original domain Deep-diver.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.0 kB (48%)

Content Size

87.5 kB

After Optimization

45.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Deep-diver.ru main page is 87.5 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. 15% of websites need less resources to load. HTML takes 43.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 36.4 kB

  • Original 43.3 kB
  • After minification 35.6 kB
  • After compression 6.9 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 7.7 kB, which is 18% 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 36.4 kB or 84% of the original size.

Image Optimization

-10%

Potential reduce by 4.4 kB

  • Original 42.8 kB
  • After minification 38.3 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. Deep Diver images are well optimized though.

CSS Optimization

-85%

Potential reduce by 1.2 kB

  • Original 1.4 kB
  • After minification 1.2 kB
  • After compression 212 B

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. Deep-diver.ru needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

23

After Optimization

23

  • Images
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deep Diver. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

deep-diver.ru accessibility score

49

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

deep-diver.ru best practices score

67

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

deep-diver.ru SEO score

50

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Document uses plugins

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 Deep-diver.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 Deep-diver.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

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