Tools & Wizards About Us
numbercheck.co.uk screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

numbercheck.co.uk

Bulk Phone Number Validation Service | Live Number Testing | Telephone Verification | Selectabase

Page Load Speed

2.5 sec in total

First Response

193 ms

Resources Loaded

2.1 sec

Page Rendered

201 ms

numbercheck.co.uk screenshot

About Website

Welcome to numbercheck.co.uk homepage info - get ready to check Number Check best content right away, or after learning these important things about numbercheck.co.uk

Avoid wasted time & money calling dead numbers! Try our phone number verification & validation service. Fast, efficient & fully compliant.

Visit numbercheck.co.uk

Key Findings

We analyzed Numbercheck.co.uk page load time and found that the first response time was 193 ms and then it took 2.3 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

numbercheck.co.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value2,680 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

numbercheck.co.uk

193 ms

914 ms

gtm.js

89 ms

js

148 ms

bat.js

34 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Numbercheck.co.uk, 78% (46 requests) were made to Selectabase.co.uk and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (914 ms) relates to the external source Selectabase.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (58%)

Content Size

1.8 MB

After Optimization

760.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Numbercheck.co.uk main page is 1.8 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. 45% of websites need less resources to load. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 77.9 kB

  • Original 99.6 kB
  • After minification 90.8 kB
  • After compression 21.7 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 77.9 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 3.2 kB

  • Original 111.2 kB
  • After minification 108.0 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. Number Check images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 608.2 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 557.6 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 608.2 kB or 52% of the original size.

CSS Optimization

-84%

Potential reduce by 370.2 kB

  • Original 442.9 kB
  • After minification 408.1 kB
  • After compression 72.7 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. Numbercheck.co.uk needs all CSS files to be minified and compressed as it can save up to 370.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (83%)

Requests Now

54

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Number Check. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

numbercheck.co.uk

numbercheck.co.uk

193 ms

914 ms

gtm.js

gtm.js

89 ms

js

js

148 ms

bat.js

bat.js

34 ms

style.min.css

style.min.css

328 ms

styles.css

styles.css

241 ms

cookie-law-info-public.css

cookie-law-info-public.css

243 ms

cookie-law-info-gdpr.css

cookie-law-info-gdpr.css

325 ms

css

css

41 ms

foundation.css

foundation.css

323 ms

normalize.css

normalize.css

242 ms

style.css

style.css

537 ms

wprevpro_w3.css

wprevpro_w3.css

469 ms

jquery.min.js

jquery.min.js

27 ms

frontend.js

frontend.js

320 ms

cookie-law-info-public.js

cookie-law-info-public.js

551 ms

modernizr.min.js

modernizr.min.js

400 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

401 ms

plugins.js

plugins.js

409 ms

responsive-tables.js

responsive-tables.js

479 ms

scripts.js

scripts.js

480 ms

wprs-combined.min.js

wprs-combined.min.js

491 ms

wprev-public.min.js

wprev-public.min.js

549 ms

136016350.js

136016350.js

10 ms

css

css

23 ms

homeForm-style.css

homeForm-style.css

501 ms

rs6.css

rs6.css

562 ms

index.js

index.js

501 ms

index.js

index.js

562 ms

rbtools.min.js

rbtools.min.js

710 ms

rs6.min.js

rs6.min.js

868 ms

core.min.js

core.min.js

581 ms

mouse.min.js

mouse.min.js

598 ms

slider.min.js

slider.min.js

634 ms

api.js

api.js

39 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

640 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

642 ms

wp-polyfill.min.js

wp-polyfill.min.js

699 ms

index.js

index.js

708 ms

homeForm.min.js

homeForm.min.js

726 ms

api.js

api.js

58 ms

logo.png

logo.png

251 ms

dummy.png

dummy.png

273 ms

dma.png

dma.png

309 ms

tps.png

tps.png

312 ms

stat.js

stat.js

79 ms

icon-login.png

icon-login.png

293 ms

icon-callback.png

icon-callback.png

294 ms

bottom-arrow.png

bottom-arrow.png

321 ms

landline-tps-check.jpg

landline-tps-check.jpg

355 ms

content-bg.jpg

content-bg.jpg

355 ms

li-bullet-arrow.jpg

li-bullet-arrow.jpg

376 ms

st-clock.png

st-clock.png

378 ms

icons.png

icons.png

352 ms

b252d464-65cb-4950-88f7-ac0a1bf79b75.woff

b252d464-65cb-4950-88f7-ac0a1bf79b75.woff

390 ms

eadbb595-a394-48fc-834f-8bf5da15cddf.woff

eadbb595-a394-48fc-834f-8bf5da15cddf.woff

385 ms

font

font

17 ms

recaptcha__de.js

recaptcha__de.js

27 ms

Accessibility Review

numbercheck.co.uk accessibility score

84

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

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.

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

Form elements do not have associated labels

Best Practices

numbercheck.co.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

numbercheck.co.uk SEO score

100

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

    EN

  • Encoding

    UTF-8

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

numbercheck.co.uk

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