Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

justlondon.org

Prayer Times in London for May 2023

Page Load Speed

2 sec in total

First Response

138 ms

Resources Loaded

1.6 sec

Page Rendered

246 ms

justlondon.org screenshot

About Website

Welcome to justlondon.org homepage info - get ready to check Just London best content right away, or after learning these important things about justlondon.org

London is one of the principal cities of Europe and one of the most visited in the world. It has many attractions, many inportant monuments, beautiful art museum, and incredible landscape.

Visit justlondon.org

Key Findings

We analyzed Justlondon.org page load time and found that the first response time was 138 ms and then it took 1.8 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

justlondon.org performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

66/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value630 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

justlondon.org

138 ms

www.justlondon.org

259 ms

estilo.css

183 ms

jquery.min.js

89 ms

jquery.datepick.packFixed.js

355 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 40% of them (21 requests) were addressed to the original Justlondon.org, 10% (5 requests) were made to Googleads.g.doubleclick.net and 8% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Apis.google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 244.4 kB (65%)

Content Size

374.0 kB

After Optimization

129.6 kB

In fact, the total size of Justlondon.org main page is 374.0 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. 45% of websites need less resources to load. Javascripts take 242.8 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 37.8 kB

  • Original 50.2 kB
  • After minification 44.4 kB
  • After compression 12.5 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 5.9 kB, which is 12% 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 37.8 kB or 75% of the original size.

Image Optimization

-3%

Potential reduce by 1.3 kB

  • Original 39.7 kB
  • After minification 38.4 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. Just London images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 170.3 kB

  • Original 242.8 kB
  • After minification 169.8 kB
  • After compression 72.5 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 170.3 kB or 70% of the original size.

CSS Optimization

-85%

Potential reduce by 35.0 kB

  • Original 41.2 kB
  • After minification 35.6 kB
  • After compression 6.2 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. Justlondon.org needs all CSS files to be minified and compressed as it can save up to 35.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (53%)

Requests Now

47

After Optimization

22

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Just London. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

justlondon.org accessibility score

97

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.

Best Practices

justlondon.org best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

justlondon.org SEO score

92

Search Engine Optimization Advices

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

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Justlondon.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 Justlondon.org main page’s claimed encoding is windows-1252. 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 data is detected on the main page of Just London. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: