Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

tech-diving.ru

Дайвинг | дайвинг-центр | дайвинг снаряжение | обучение дайвингу | дайвинг сертификаты

Page Load Speed

8.5 sec in total

First Response

656 ms

Resources Loaded

5.1 sec

Page Rendered

2.7 sec

About Website

Click here to check amazing Tech Diving content for Russia. Otherwise, check out these important facts you probably never knew about tech-diving.ru

Новости Дайвинг-центра "ORCA". Обучение дайвингу, дайвинг-туры, дайвинг-сафари. Оборудование для дайвинга

Visit tech-diving.ru

Key Findings

We analyzed Tech-diving.ru page load time and found that the first response time was 656 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

tech-diving.ru performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value1,680 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

tech-diving.ru

656 ms

www.tech-diving.ru

1187 ms

styles.css

534 ms

shapka1.jpg

2696 ms

menu_delfin.jpg

735 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 80% of them (45 requests) were addressed to the original Tech-diving.ru, 11% (6 requests) were made to I.piccy.info and 4% (2 requests) were made to Divebanner.ru. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Tech-diving.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 56.4 kB (8%)

Content Size

670.0 kB

After Optimization

613.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tech-diving.ru main page is 670.0 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. 25% of websites need less resources to load. Images take 617.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 33.4 kB

  • Original 44.3 kB
  • After minification 41.6 kB
  • After compression 10.8 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. 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 33.4 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 16.5 kB

  • Original 617.6 kB
  • After minification 601.1 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. Tech Diving images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 237 B

  • Original 615 B
  • After minification 615 B
  • After compression 378 B

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 237 B or 39% of the original size.

CSS Optimization

-83%

Potential reduce by 6.2 kB

  • Original 7.5 kB
  • After minification 6.4 kB
  • After compression 1.3 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. Tech-diving.ru needs all CSS files to be minified and compressed as it can save up to 6.2 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

52

After Optimization

52

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tech Diving. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

tech-diving.ru accessibility score

51

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

tech-diving.ru best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

tech-diving.ru SEO score

69

Search Engine Optimization Advices

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

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 Tech-diving.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 Tech-diving.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 Tech Diving. 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: