Report Summary

  • 22


    Renders faster than
    40% of other websites

  • 97


    Visual factors better than
    that of 92% of websites

  • 0

    Best Practices

  • 100


    Google-friendlier than
    95% of websites

Posthub | Hands On Mail Delivery, Mail Management and Addressed Mail Support | Part Of The Whistl Group

Page Load Speed

4 sec in total

First Response

339 ms

Resources Loaded

2.8 sec

Page Rendered

910 ms screenshot

About Website

Welcome to homepage info - get ready to check Posthub best content right away, or after learning these important things about

Posthub is part of the Whistl Group (the UK's leading downstream access provider). Posthub's consultative and hands-on support ensures reliable postal delivery. With added value services including mai...


Key Findings

We analyzed page load time and found that the first response time was 339 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics performance score


Measured Metrics





FCP (First Contentful Paint)

Value3.5 s



LCP (Largest Contentful Paint)

Value14.7 s



SI (Speed Index)

Value7.8 s



TBT (Total Blocking Time)

Value4,940 ms



CLS (Cumulative Layout Shift)




TTI (Time to Interactive)

Value15.0 s



Network Requests Diagram

339 ms

290 ms

639 ms


74 ms


151 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 33% of them (14 requests) were addressed to the original, 17% (7 requests) were made to and 5% (2 requests) were made to The less responsive or slowest element that took the longest time to load (645 ms) relates to the external source

Page Optimization Overview & Recommendations

Page size can be reduced by 72.0 kB (12%)

Content Size

588.1 kB

After Optimization

516.1 kB

In fact, the total size of main page is 588.1 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. 35% of websites need less resources to load. Javascripts take 441.4 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 63.6 kB

  • Original 76.1 kB
  • After minification 59.3 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 16.8 kB, which is 22% 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 63.6 kB or 84% of the original size.

Image Optimization


Potential reduce by 3 B

  • Original 47.5 kB
  • After minification 47.5 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. Posthub images are well optimized though.

JavaScript Optimization


Potential reduce by 8.2 kB

  • Original 441.4 kB
  • After minification 441.4 kB
  • After compression 433.1 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


Potential reduce by 97 B

  • Original 23.1 kB
  • After minification 23.1 kB
  • After compression 23.0 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. has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (64%)

Requests Now


After Optimization


The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Posthub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review accessibility score


Accessibility Issues


These are opportunities to improve the legibility of your content.




Background and foreground colors do not have a sufficient contrast ratio.


These are opportunities to improve keyboard navigation in your application.




Heading elements are not in a sequentially-descending order

SEO Factors SEO score


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](




Document uses legible font sizes

Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


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

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