Tools & Wizards About Us
columbiascuba.com screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

columbiascuba.com

Page Load Speed

1.8 sec in total

First Response

143 ms

Resources Loaded

1.3 sec

Page Rendered

353 ms

columbiascuba.com screenshot

About Website

Welcome to columbiascuba.com homepage info - get ready to check Columbiascuba best content right away, or after learning these important things about columbiascuba.com

Welcome to Columbia Scuba

Visit columbiascuba.com

Key Findings

We analyzed Columbiascuba.com page load time and found that the first response time was 143 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

columbiascuba.com performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.3 s

1/100

10%

Network Requests Diagram

columbiascuba.com

143 ms

columbiascuba.com

532 ms

vendor.css

195 ms

app.css

259 ms

new_custom.css

187 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 66% of them (19 requests) were addressed to the original Columbiascuba.com, 10% (3 requests) were made to Connect.facebook.net and 7% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (532 ms) belongs to the original domain Columbiascuba.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 337.8 kB (30%)

Content Size

1.1 MB

After Optimization

788.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Columbiascuba.com main page is 1.1 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. 55% of websites need less resources to load. Images take 515.5 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 145.0 kB

  • Original 163.2 kB
  • After minification 91.4 kB
  • After compression 18.2 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 71.8 kB, which is 44% 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 145.0 kB or 89% of the original size.

Image Optimization

-5%

Potential reduce by 26.0 kB

  • Original 515.5 kB
  • After minification 489.5 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. Columbiascuba images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 164.9 kB

  • Original 377.3 kB
  • After minification 377.3 kB
  • After compression 212.4 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 164.9 kB or 44% of the original size.

CSS Optimization

-3%

Potential reduce by 1.8 kB

  • Original 69.9 kB
  • After minification 69.9 kB
  • After compression 68.0 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. Columbiascuba.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (71%)

Requests Now

24

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Columbiascuba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

columbiascuba.com

columbiascuba.com

143 ms

columbiascuba.com

columbiascuba.com

532 ms

vendor.css

vendor.css

195 ms

app.css

app.css

259 ms

new_custom.css

new_custom.css

187 ms

vendor.js

vendor.js

319 ms

shop_custom.css

shop_custom.css

204 ms

shop_vendor.js

shop_vendor.js

275 ms

app.js

app.js

193 ms

masonry.js

masonry.js

217 ms

jquery.cookie.js

jquery.cookie.js

217 ms

jquery.lazy.min.js

jquery.lazy.min.js

254 ms

contact_ajax.js

contact_ajax.js

397 ms

cookieconsent.min.css

cookieconsent.min.css

25 ms

cookieconsent.min.js

cookieconsent.min.js

27 ms

shop.js

shop.js

397 ms

api.js

api.js

47 ms

sdk.js

sdk.js

20 ms

james-lee-YpDkIh137ws-unsplash.jpg

james-lee-YpDkIh137ws-unsplash.jpg

98 ms

CS%20Logo%20extra%20large.png

CS%20Logo%20extra%20large.png

305 ms

1_1705686391New.jpg

1_1705686391New.jpg

308 ms

S6u9w4BMUTPHh6UVSwiPHA.ttf

S6u9w4BMUTPHh6UVSwiPHA.ttf

33 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

43 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

125 ms

js

js

114 ms

fbevents.js

fbevents.js

12 ms

sdk.js

sdk.js

52 ms

getLangStrings

getLangStrings

124 ms

29 ms

Accessibility Review

columbiascuba.com accessibility score

73

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA IDs are not unique

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

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.

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

columbiascuba.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

columbiascuba.com SEO score

75

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Columbiascuba.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Columbiascuba.com 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

columbiascuba.com

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