Tools & Wizards About Us
bluelineinstruments.co.uk screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

bluelineinstruments.co.uk

Blueline instruments - Flue Gas Analysers Natural Gas Leak Detectors, Temperature & Pressure Instruments Air Velocity Meters

Page Load Speed

2.3 sec in total

First Response

23 ms

Resources Loaded

2.1 sec

Page Rendered

117 ms

bluelineinstruments.co.uk screenshot

About Website

Welcome to bluelineinstruments.co.uk homepage info - get ready to check Blueline Instruments best content right away, or after learning these important things about bluelineinstruments.co.uk

BlueLine Instruments Flue Gas Analysers Natural Gas Leak Detectors, Temperature & Pressure Instruments, Air Velocity

Visit bluelineinstruments.co.uk

Key Findings

We analyzed Bluelineinstruments.co.uk page load time and found that the first response time was 23 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

bluelineinstruments.co.uk performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.509

16/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

www.bluelineinstruments.co.uk

23 ms

site.css

18 ms

duel.js

23 ms

jq.js

321 ms

subNavigation.js

240 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Bluelineinstruments.co.uk, 71% (41 requests) were made to Nebula.wsimg.com and 16% (9 requests) were made to P3pprd001.cloudstorage.secureserver.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Nebula.wsimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.6 kB (9%)

Content Size

2.9 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bluelineinstruments.co.uk main page is 2.9 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. 40% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 77.7 kB

  • Original 93.7 kB
  • After minification 93.7 kB
  • After compression 16.0 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 77.7 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 6.5 kB

  • Original 2.5 MB
  • After minification 2.5 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. Blueline Instruments images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 181.3 kB

  • Original 279.0 kB
  • After minification 278.8 kB
  • After compression 97.7 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 181.3 kB or 65% of the original size.

CSS Optimization

-0%

Potential reduce by 14 B

  • Original 6.6 kB
  • After minification 6.6 kB
  • After compression 6.6 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. Bluelineinstruments.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (22%)

Requests Now

55

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blueline Instruments. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.bluelineinstruments.co.uk

www.bluelineinstruments.co.uk

23 ms

site.css

site.css

18 ms

duel.js

duel.js

23 ms

jq.js

jq.js

321 ms

subNavigation.js

subNavigation.js

240 ms

a8fc3de06601f348683c1e933fab7068

a8fc3de06601f348683c1e933fab7068

333 ms

analytics.js

analytics.js

11 ms

media.gallery.js

media.gallery.js

239 ms

cookiemanager.js

cookiemanager.js

235 ms

iebackground.js

iebackground.js

236 ms

7e3a97ee3129b6fff7f4b149898a8988

7e3a97ee3129b6fff7f4b149898a8988

327 ms

a416d39261747aac195f51fb3e7a2361

a416d39261747aac195f51fb3e7a2361

332 ms

1428bbd0d303c877493f45c34a89b04c

1428bbd0d303c877493f45c34a89b04c

349 ms

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746e4388506785bb2c6a80118d962949

291 ms

6d18d5f4ed748ecf5d0341ae6caee934

6d18d5f4ed748ecf5d0341ae6caee934

46 ms

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69024a1d7698b659ccf3fe9bb4f3dd38

330 ms

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4c58abbf55d4466bf83b3ed83a98b080

482 ms

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18cdd52501b5ce9fb4ed85f49c30fab8

558 ms

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5b1c2ec7d64f9cc4cb6f08296bbc4acc

498 ms

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a0cc724a30243dd7f33bc58932b9e2b5

440 ms

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fe69fa7ca4774ecc498e801fa8cceaaa

461 ms

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e53b9180b32ed54d52bf77031c0f1e3d

357 ms

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f8235ce7014ff9daeab741c833910c49

526 ms

bb5e148924c1a3bc58414cb3dd78bebc

bb5e148924c1a3bc58414cb3dd78bebc

558 ms

d4d974b0a66a944e8939418822c9fb10

d4d974b0a66a944e8939418822c9fb10

605 ms

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1b837d9800d23dcd5452ea755c0cd21c

650 ms

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38ccb0299b2391feecd3992956847802

741 ms

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96406cddaec323b7968075c288f2d2d9

649 ms

e0f61b39d385f45eee2c7bde54fcc2c8

e0f61b39d385f45eee2c7bde54fcc2c8

782 ms

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daebb8d541898871c08be547f8ce25d0

726 ms

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30ba66e5adafb3af78bbb8b276070764

973 ms

b78f9e7346e3c8245649dfb1fec17a91

b78f9e7346e3c8245649dfb1fec17a91

773 ms

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deffa0ab127a6bd0923400ffc3e56c3f

777 ms

2d54c51465b73e308adf0ae09f65d017

2d54c51465b73e308adf0ae09f65d017

922 ms

4940d5e66fa362859840a97a0a01b4af

4940d5e66fa362859840a97a0a01b4af

905 ms

87eda2988f95b5c8f93cb31855c8ca93

87eda2988f95b5c8f93cb31855c8ca93

888 ms

82fc92caf89a9da69e0094a09f182f3f

82fc92caf89a9da69e0094a09f182f3f

993 ms

dd70c9c3189ee4166775cffa542e9664

dd70c9c3189ee4166775cffa542e9664

941 ms

1f701cc48724dd0f48cce28e2e1920d6

1f701cc48724dd0f48cce28e2e1920d6

1009 ms

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495028038be4b2053f7fd30220266ad6

1091 ms

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523659e1c536c026a072ddd960bf23ad

1107 ms

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1067 ms

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1205 ms

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1003 ms

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1012 ms

scc-c2.min.js

scc-c2.min.js

61 ms

collect

collect

37 ms

js

js

78 ms

util.window.js

util.window.js

53 ms

util.instances.js

util.instances.js

53 ms

util.model.js

util.model.js

54 ms

documentHelper.js

documentHelper.js

52 ms

77acd1835c26eaefb4fa57bfe9fff592

77acd1835c26eaefb4fa57bfe9fff592

1036 ms

e8ad668eb6d99de271242445d2dc3120

e8ad668eb6d99de271242445d2dc3120

124 ms

6d7dc34717f9f718ba6c70e81839503a

6d7dc34717f9f718ba6c70e81839503a

298 ms

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3715c2d37e8cdec9831a62d1fb232cfe

529 ms

22b9d1180f29d5e5dc00da245e0626a4

22b9d1180f29d5e5dc00da245e0626a4

602 ms

collect

collect

4 ms

Accessibility Review

bluelineinstruments.co.uk accessibility score

45

Accessibility Issues

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.

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

bluelineinstruments.co.uk best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

bluelineinstruments.co.uk SEO score

92

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

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 Bluelineinstruments.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 Bluelineinstruments.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

bluelineinstruments.co.uk

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