Tools & Wizards About Us

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

thamesjet.com

Thames RIB Experience | London Fastest Speedboats

Page Load Speed

1.8 sec in total

First Response

72 ms

Resources Loaded

1.3 sec

Page Rendered

380 ms

About Website

Visit thamesjet.com now to see the best up-to-date Thames Jet content for United Kingdom and also check out these interesting facts you probably never knew about thamesjet.com

Adrenaline fuelled, high-speed boat adventure. London sightseeing from the River Thames, James Bond style! Fun guided tour of famous landmarks. See trip offers & deals.

Visit thamesjet.com

Key Findings

We analyzed Thamesjet.com page load time and found that the first response time was 72 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

thamesjet.com performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value39.5 s

0/100

25%

SI (Speed Index)

Value23.9 s

0/100

10%

TBT (Total Blocking Time)

Value14,030 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.127

82/100

15%

TTI (Time to Interactive)

Value48.3 s

0/100

10%

Network Requests Diagram

thamesjet.com

72 ms

56 ms

autoptimize_35c0013f651a33e8dc9c83e38dbe2424.css

76 ms

autoptimize_single_f0a21b1ef4a430d4261638f4256fb783.css

70 ms

animate.min.css

117 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Thamesjet.com, 35% (38 requests) were made to Assets.cityexperiences.com and 34% (37 requests) were made to Cityexperiences.com. The less responsive or slowest element that took the longest time to load (782 ms) relates to the external source Assets.cityexperiences.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 670.4 kB (12%)

Content Size

5.5 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Thamesjet.com main page is 5.5 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. Only a small number of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 210.5 kB

  • Original 257.2 kB
  • After minification 257.2 kB
  • After compression 46.7 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 210.5 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 3.9 MB
  • After minification 3.9 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. Thames Jet images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 454.3 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 722.2 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 454.3 kB or 39% of the original size.

CSS Optimization

-3%

Potential reduce by 5.6 kB

  • Original 175.6 kB
  • After minification 175.6 kB
  • After compression 170.0 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. Thamesjet.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 52 (55%)

Requests Now

95

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Thames Jet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

thamesjet.com accessibility score

70

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

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.

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

thamesjet.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

thamesjet.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

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thamesjet.com 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 Thamesjet.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

Open Graph data is detected on the main page of Thames Jet. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: