Tools & Wizards About Us
tdisdi.pl screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

tdisdi.pl

SDI TDI Polska - szkolenia i kursy nurkowe rekreacyjne i techniczne tdisdi.pl

Page Load Speed

2.8 sec in total

First Response

449 ms

Resources Loaded

2.2 sec

Page Rendered

115 ms

tdisdi.pl screenshot

About Website

Click here to check amazing TDI SDI content for Poland. Otherwise, check out these important facts you probably never knew about tdisdi.pl

Abyss Diving dystrybutor sprzetu nurkowego renomowanych firm swiatowych. Kursy nurkowe rekreacyjne i techniczne

Visit tdisdi.pl

Key Findings

We analyzed Tdisdi.pl page load time and found that the first response time was 449 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

tdisdi.pl performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

tdisdi.pl

449 ms

style.css

125 ms

lytebox.css

234 ms

lytebox.js

243 ms

jquery-1.7.1.min.js

425 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 97% of them (28 requests) were addressed to the original Tdisdi.pl, 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Tdisdi.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.3 kB (2%)

Content Size

1.9 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tdisdi.pl main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 8.8 kB

  • Original 12.6 kB
  • After minification 11.5 kB
  • After compression 3.7 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 8.8 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 27.0 kB

  • Original 1.8 MB
  • After minification 1.8 MB

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. TDI SDI images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 6.6 kB

  • Original 47.2 kB
  • After minification 46.9 kB
  • After compression 40.7 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 6.6 kB or 14% of the original size.

CSS Optimization

-21%

Potential reduce by 932 B

  • Original 4.4 kB
  • After minification 4.4 kB
  • After compression 3.4 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. Tdisdi.pl needs all CSS files to be minified and compressed as it can save up to 932 B or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (14%)

Requests Now

28

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TDI SDI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tdisdi.pl

tdisdi.pl

449 ms

style.css

style.css

125 ms

lytebox.css

lytebox.css

234 ms

lytebox.js

lytebox.js

243 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

425 ms

simple-dropdown-menu.js

simple-dropdown-menu.js

245 ms

js

js

66 ms

jflow.style.css

jflow.style.css

246 ms

jflow.plus.min.js

jflow.plus.min.js

245 ms

homepage-logo-sdi.png

homepage-logo-sdi.png

435 ms

homepage-bg.png

homepage-bg.png

118 ms

main-headerbg.png

main-headerbg.png

122 ms

main-topnavback.gif

main-topnavback.gif

118 ms

flag-rom.png

flag-rom.png

123 ms

flag-bul.png

flag-bul.png

124 ms

polonia.png

polonia.png

124 ms

logo_20_lat_small.jpg

logo_20_lat_small.jpg

370 ms

352908fd59a34522192dbc383836cb64.png

352908fd59a34522192dbc383836cb64.png

1247 ms

ae29085e31c577da625a6b156f632454.png

ae29085e31c577da625a6b156f632454.png

1198 ms

d8739fec3b59f72a6a0eb50575fa4894.png

d8739fec3b59f72a6a0eb50575fa4894.png

1236 ms

c81b8bfc38cbe8e042f501c46b2dc874.png

c81b8bfc38cbe8e042f501c46b2dc874.png

1258 ms

bullet.png

bullet.png

245 ms

arrows.png

arrows.png

367 ms

logo_fb.jpg

logo_fb.jpg

559 ms

logo_us.jpg

logo_us.jpg

485 ms

create_image.php

create_image.php

603 ms

homepage-logo-tdi.png

homepage-logo-tdi.png

399 ms

homepage-logo-erdi.png

homepage-logo-erdi.png

406 ms

homepage-logo-travel.png

homepage-logo-travel.png

298 ms

Accessibility Review

tdisdi.pl accessibility score

63

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.

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

Form elements do not have associated labels

Best Practices

tdisdi.pl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tdisdi.pl SEO score

50

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tdisdi.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Tdisdi.pl 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

tdisdi.pl

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