Tools & Wizards About Us
ulezchecker.com screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

ulezchecker.com

ULEZ Checker | What is ULEZ | ULEZ 2021 | ULEZ Extension

Page Load Speed

9.9 sec in total

First Response

2.9 sec

Resources Loaded

6.6 sec

Page Rendered

442 ms

ulezchecker.com screenshot

About Website

Visit ulezchecker.com now to see the best up-to-date ULEZ Checker content and also check out these interesting facts you probably never knew about ulezchecker.com

ULEZ Checker - Check if your vehicle is ULEZ Compliant by entering the vehicle registration number. Find out about the ULEZ 2021, ULEZ Extension.

Visit ulezchecker.com

Key Findings

We analyzed Ulezchecker.com page load time and found that the first response time was 2.9 sec and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

ulezchecker.com performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.061

97/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

www.ulezchecker.com

2913 ms

popup_effect.min.css

276 ms

dipi-font.min.css

287 ms

general.min.css

372 ms

css

35 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 69% of them (37 requests) were addressed to the original Ulezchecker.com, 11% (6 requests) were made to Fonts.gstatic.com and 7% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Ulezchecker.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 704.8 kB (35%)

Content Size

2.0 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ulezchecker.com main page is 2.0 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. 50% of websites need less resources to load. Javascripts take 836.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 258.1 kB

  • Original 299.7 kB
  • After minification 297.0 kB
  • After compression 41.6 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 258.1 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 69 B

  • Original 800.4 kB
  • After minification 800.3 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. ULEZ Checker images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 430.1 kB

  • Original 836.9 kB
  • After minification 830.9 kB
  • After compression 406.8 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 430.1 kB or 51% of the original size.

CSS Optimization

-18%

Potential reduce by 16.5 kB

  • Original 90.9 kB
  • After minification 90.9 kB
  • After compression 74.4 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. Ulezchecker.com needs all CSS files to be minified and compressed as it can save up to 16.5 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (67%)

Requests Now

45

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ULEZ Checker. 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 from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.ulezchecker.com

www.ulezchecker.com

2913 ms

popup_effect.min.css

popup_effect.min.css

276 ms

dipi-font.min.css

dipi-font.min.css

287 ms

general.min.css

general.min.css

372 ms

css

css

35 ms

style.min.css

style.min.css

190 ms

css

css

25 ms

all.css

all.css

49 ms

style.css

style.css

101 ms

v4-shims.css

v4-shims.css

59 ms

jquery.min.js

jquery.min.js

326 ms

jquery-migrate.min.js

jquery-migrate.min.js

126 ms

public.min.js

public.min.js

204 ms

js

js

98 ms

et-core-unified-1651.min.css

et-core-unified-1651.min.css

236 ms

adsbygoogle.js

adsbygoogle.js

64 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

294 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

297 ms

modernizr.custom.js

modernizr.custom.js

397 ms

popup_effect.min.js

popup_effect.min.js

413 ms

scripts.min.js

scripts.min.js

837 ms

jquery.fitvids.js

jquery.fitvids.js

412 ms

easypiechart.js

easypiechart.js

413 ms

salvattore.js

salvattore.js

473 ms

frontend-bundle.min.js

frontend-bundle.min.js

473 ms

common.js

common.js

511 ms

vanilla-tilt.min.js

vanilla-tilt.min.js

521 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

813 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

574 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

575 ms

jquery.exitintent.min.js

jquery.exitintent.min.js

622 ms

ULEZ_checker_logo.png

ULEZ_checker_logo.png

283 ms

ulez_check.png

ulez_check.png

508 ms

nhs_ulez_discount.jpg

nhs_ulez_discount.jpg

548 ms

cazcharge.jpg

cazcharge.jpg

582 ms

ulez-charge-xmas.jpg

ulez-charge-xmas.jpg

601 ms

wintercoat.jpg

wintercoat.jpg

602 ms

wirelesscarplay.jpg

wirelesscarplay.jpg

604 ms

winter_driving_kit.jpg

winter_driving_kit.jpg

627 ms

car_seat_covers.jpg

car_seat_covers.jpg

674 ms

uknumberplate-webfont.ttf

uknumberplate-webfont.ttf

801 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4uaVc.ttf

95 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

96 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVc.ttf

112 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVc.ttf

118 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

122 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVc.ttf

122 ms

modules.woff

modules.woff

802 ms

show_ads_impl.js

show_ads_impl.js

63 ms

et-divi-dynamic-tb-2142-1651-late.css

et-divi-dynamic-tb-2142-1651-late.css

556 ms

zrt_lookup.html

zrt_lookup.html

41 ms

ads

ads

881 ms

ads

ads

647 ms

ads

ads

568 ms

Accessibility Review

ulezchecker.com accessibility score

87

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

ulezchecker.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

Page has valid source maps

SEO Factors

ulezchecker.com SEO score

91

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

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 Ulezchecker.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 Ulezchecker.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

ulezchecker.com

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