Tools & Wizards About Us
isopleth.co.uk screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

isopleth.co.uk

Isopleth Dust, Odour & Air Quality Consultants | Odour Experts

Page Load Speed

4.2 sec in total

First Response

169 ms

Resources Loaded

3.7 sec

Page Rendered

321 ms

isopleth.co.uk screenshot

About Website

Click here to check amazing Isopleth content. Otherwise, check out these important facts you probably never knew about isopleth.co.uk

Isopleth act as Air Quality Consultants and Odour Experts, providing consultancy for Dust assessments and Odour Environmental Impact Assessments.

Visit isopleth.co.uk

Key Findings

We analyzed Isopleth.co.uk page load time and found that the first response time was 169 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

isopleth.co.uk performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value840 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

isopleth.co.uk

169 ms

www.isopleth.co.uk

569 ms

style.min.css

163 ms

styles.css

227 ms

settings.css

241 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 79% of them (55 requests) were addressed to the original Isopleth.co.uk, 7% (5 requests) were made to Fonts.gstatic.com and 7% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (752 ms) belongs to the original domain Isopleth.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 305.9 kB (18%)

Content Size

1.7 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isopleth.co.uk main page is 1.7 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. 70% of websites need less resources to load. Images take 788.4 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 131.9 kB

  • Original 159.7 kB
  • After minification 156.1 kB
  • After compression 27.7 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 131.9 kB or 83% of the original size.

Image Optimization

-12%

Potential reduce by 95.3 kB

  • Original 788.4 kB
  • After minification 693.2 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. Obviously, Isopleth needs image optimization as it can save up to 95.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 51.1 kB

  • Original 544.8 kB
  • After minification 542.2 kB
  • After compression 493.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-12%

Potential reduce by 27.6 kB

  • Original 237.0 kB
  • After minification 236.0 kB
  • After compression 209.4 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. Isopleth.co.uk needs all CSS files to be minified and compressed as it can save up to 27.6 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (71%)

Requests Now

58

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isopleth. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

isopleth.co.uk

isopleth.co.uk

169 ms

www.isopleth.co.uk

www.isopleth.co.uk

569 ms

style.min.css

style.min.css

163 ms

styles.css

styles.css

227 ms

settings.css

settings.css

241 ms

font-awesome.min.css

font-awesome.min.css

242 ms

style.css

style.css

417 ms

rgs.css

rgs.css

245 ms

style.css

style.css

246 ms

magnific.css

magnific.css

300 ms

responsive.css

responsive.css

403 ms

ascend.css

ascend.css

323 ms

js_composer.min.css

js_composer.min.css

328 ms

css

css

31 ms

jquery.min.js

jquery.min.js

410 ms

jquery-migrate.min.js

jquery-migrate.min.js

374 ms

jquery.themepunch.tools.min.js

jquery.themepunch.tools.min.js

486 ms

jquery.themepunch.revolution.min.js

jquery.themepunch.revolution.min.js

409 ms

core.min.js

core.min.js

389 ms

menu.min.js

menu.min.js

405 ms

dom-ready.min.js

dom-ready.min.js

450 ms

hooks.min.js

hooks.min.js

451 ms

i18n.min.js

i18n.min.js

452 ms

a11y.min.js

a11y.min.js

456 ms

autocomplete.min.js

autocomplete.min.js

494 ms

wpss-search-suggest.js

wpss-search-suggest.js

521 ms

index.js

index.js

520 ms

index.js

index.js

522 ms

priority.js

priority.js

523 ms

modernizr.js

modernizr.js

539 ms

imagesLoaded.min.js

imagesLoaded.min.js

634 ms

magnific.js

magnific.js

635 ms

superfish.js

superfish.js

634 ms

init.js

init.js

752 ms

touchswipe.min.js

touchswipe.min.js

637 ms

api.js

api.js

42 ms

wp-polyfill.min.js

wp-polyfill.min.js

638 ms

index.js

index.js

645 ms

js_composer_front.min.js

js_composer_front.min.js

655 ms

background.jpg

background.jpg

477 ms

rgb-isopleth.jpg

rgb-isopleth.jpg

221 ms

Environmental-Pollution-slider.jpg

Environmental-Pollution-slider.jpg

408 ms

slider2.jpg

slider2.jpg

515 ms

homepageimpact1.jpg

homepageimpact1.jpg

287 ms

homeimpact.jpg

homeimpact.jpg

301 ms

LinkedinLogoTransparent.png

LinkedinLogoTransparent.png

407 ms

accreditations1.jpg

accreditations1.jpg

407 ms

www.isopleth.co.uk

www.isopleth.co.uk

496 ms

site-background3jpg.jpg

site-background3jpg.jpg

486 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

45 ms

OpenSans-Regular-webfont.woff

OpenSans-Regular-webfont.woff

454 ms

OpenSans-Light-webfont.woff

OpenSans-Light-webfont.woff

462 ms

OpenSans-Semibold-webfont.woff

OpenSans-Semibold-webfont.woff

545 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

46 ms

OpenSansBold-webfont.woff

OpenSansBold-webfont.woff

583 ms

icomoon.woff

icomoon.woff

529 ms

recaptcha__en.js

recaptcha__en.js

104 ms

revolution.extension.slideanims.min.js

revolution.extension.slideanims.min.js

275 ms

revolution.extension.navigation.min.js

revolution.extension.navigation.min.js

276 ms

anchor

anchor

31 ms

styles__ltr.css

styles__ltr.css

5 ms

recaptcha__en.js

recaptcha__en.js

13 ms

w8jilI7vDbJvAiJQQk88k7rduamqHzPsdFolUJZhiKw.js

w8jilI7vDbJvAiJQQk88k7rduamqHzPsdFolUJZhiKw.js

35 ms

webworker.js

webworker.js

70 ms

logo_48.png

logo_48.png

23 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

63 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

73 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

73 ms

recaptcha__en.js

recaptcha__en.js

70 ms

loader.gif

loader.gif

116 ms

Accessibility Review

isopleth.co.uk accessibility score

75

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

Image elements do not have [alt] attributes

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

isopleth.co.uk 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

isopleth.co.uk SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Isopleth.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 Isopleth.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

isopleth.co.uk

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