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open-dive.ru screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 0

    Best Practices

  • 85

    SEO

    Google-friendlier than
    56% of websites

open-dive.ru

Купить подводное снаряжение для дайвинга и охоты по низкой цене - Опендайв

Page Load Speed

2 sec in total

First Response

277 ms

Resources Loaded

1.6 sec

Page Rendered

154 ms

open-dive.ru screenshot

About Website

Click here to check amazing Open Dive content for Russia. Otherwise, check out these important facts you probably never knew about open-dive.ru

Заказать подводное снаряжение для дайвинга и охоты по выгодной стоимости в интернет-магазине Опендайв - акции и скидки, быстрая доставка, надёжные бренды

Visit open-dive.ru

Key Findings

We analyzed Open-dive.ru page load time and found that the first response time was 277 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

open-dive.ru performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value13.7 s

2/100

10%

TBT (Total Blocking Time)

Value5,280 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.185

66/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

open-dive.ru

277 ms

www.open-dive.ru

476 ms

style.css

298 ms

jquery-1.3.2.min.js

411 ms

logo_big.png

205 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that all of those requests were addressed to Open-dive.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (476 ms) belongs to the original domain Open-dive.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.1 kB (40%)

Content Size

179.9 kB

After Optimization

107.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Open-dive.ru main page is 179.9 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. 15% of websites need less resources to load. Images take 124.9 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 5.5 kB

  • Original 8.2 kB
  • After minification 7.6 kB
  • After compression 2.7 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 5.5 kB or 67% of the original size.

Image Optimization

-22%

Potential reduce by 28.0 kB

  • Original 124.9 kB
  • After minification 97.0 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, Open Dive needs image optimization as it can save up to 28.0 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-83%

Potential reduce by 38.6 kB

  • Original 46.8 kB
  • After minification 39.3 kB
  • After compression 8.1 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. Open-dive.ru needs all CSS files to be minified and compressed as it can save up to 38.6 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open Dive. According to our analytics all requests are already optimized.

Network Requests Diagram

open-dive.ru

open-dive.ru

277 ms

www.open-dive.ru

www.open-dive.ru

476 ms

style.css

style.css

298 ms

jquery-1.3.2.min.js

jquery-1.3.2.min.js

411 ms

logo_big.png

logo_big.png

205 ms

chrome_icon.png

chrome_icon.png

108 ms

ff_icon.png

ff_icon.png

189 ms

opera_icon.png

opera_icon.png

208 ms

safari_icon.png

safari_icon.png

201 ms

ie_icon.png

ie_icon.png

202 ms

locker.jpg

locker.jpg

209 ms

folder.jpg

folder.jpg

376 ms

windows_logo.jpg

windows_logo.jpg

397 ms

download_btn.gif

download_btn.gif

289 ms

Accessibility Review

open-dive.ru accessibility score

65

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

SEO Factors

open-dive.ru SEO score

85

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

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

    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 Open-dive.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 Open-dive.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-dive.ru

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