Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

divingtenerife.co.uk

Los Gigantes Diving Centre, Scuba Diving in Tenerife, PADI Dive Centre and BSAC school

Page Load Speed

3.4 sec in total

First Response

199 ms

Resources Loaded

2.8 sec

Page Rendered

351 ms

divingtenerife.co.uk screenshot

About Website

Welcome to divingtenerife.co.uk homepage info - get ready to check Diving Tenerife best content right away, or after learning these important things about divingtenerife.co.uk

Diving Los Gigantes Diving Centre Tenerife. PADI dive centre and BSAC school in the South of Tenerife offering guided boat dives, PADI and BSAC course, accommodation and dive packages

Visit divingtenerife.co.uk

Key Findings

We analyzed Divingtenerife.co.uk page load time and found that the first response time was 199 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

divingtenerife.co.uk performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value2,660 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.132

81/100

15%

TTI (Time to Interactive)

Value19.0 s

3/100

10%

Network Requests Diagram

divingtenerife.co.uk

199 ms

divingtenerife.co.uk

675 ms

130fe4c4f562fb97a1ac5cfebb7d9341.js

268 ms

system.css

251 ms

bootstrap.css

338 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 47% of them (22 requests) were addressed to the original Divingtenerife.co.uk, 11% (5 requests) were made to Youtube.com and 11% (5 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Developers.google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.1 kB (5%)

Content Size

929.5 kB

After Optimization

887.3 kB

In fact, the total size of Divingtenerife.co.uk main page is 929.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 412.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 29.7 kB

  • Original 40.2 kB
  • After minification 40.2 kB
  • After compression 10.6 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 29.7 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 3.5 kB

  • Original 378.4 kB
  • After minification 374.9 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. Diving Tenerife images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 6.6 kB

  • Original 412.7 kB
  • After minification 412.7 kB
  • After compression 406.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 2.4 kB

  • Original 98.2 kB
  • After minification 98.2 kB
  • After compression 95.9 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. Divingtenerife.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (55%)

Requests Now

42

After Optimization

19

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diving Tenerife. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

divingtenerife.co.uk accessibility score

61

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

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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.

Best Practices

divingtenerife.co.uk 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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

divingtenerife.co.uk SEO score

93

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Divingtenerife.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Divingtenerife.co.uk 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 data is detected on the main page of Diving Tenerife. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: