fernox.com — Fernox - Industry Leading Water Treatment Specialists Since 1964

Fernox is a manufacturer of heating system chemicals, filters and equipment. We're committed to providing the heating industry with top class, reliable and efficient products which get the job do...

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  • Summary
  • Rating: 62/100
  • Successful tests: 6
  • Failed tests: 2

Page load speed analysis

Click here to check amazing Fernox content for United Kingdom. Otherwise, check out these important facts you probably never knew about fernox.com

We analyzed Fernox.com page load time and found that the first response time was 688 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

688 ms
1.4 sec
135 ms

First response

Resources loated

Page rendered

2.2 sec

Total page load time

Normal result

Network requests diagram

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Fernox.com and no external sources were called. The less responsive or slowest element that took the longest time to load (741 ms) belongs to the original domain Fernox.com.

Page size

In fact, the total size of Fernox.com main page is 57.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 28.3 kB which makes up the majority of the site volume.

HTML optimization

9.4 kB original
7.3 kB after minification
1.7 kB after compression

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 2.0 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 7.6 kB or 81% of the original size.

Image optimization

19.3 kB original
17.0 kB after optimization

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, Fernox needs image optimization as it can save up to 2.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS optimization

28.3 kB original
21.2 kB after minification
6.1 kB after compression

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. Fernox.com needs all CSS files to be minified and compressed as it can save up to 22.2 kB or 78% of the original size.

Normal result

Total page size 57.0 kB

Size after compression 24.8 kB (56% less)


The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Fernox. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.










All reqests

Possible request optimization










All reqests

Normal result

HTTPS certificate

SSL Certificate

Fernox.com has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

IP address

Fernox.com uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace






DNS records

Type Host Target/ip TTL Other

fernox.com 3600


ns4-04.azure-dns.info 86400


ns1-04.azure-dns.com 86400


ns3-04.azure-dns.org 86400


ns2-04.azure-dns.net 86400

Visitor World Map

Country of origin for 76.1% of all visits is United Kingdom. It’s good for Fernox.com that their server is also located in United Kingdom, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Language and encoding

Good result









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

Poor result

Social Sharing Optimization

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

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Page load

DNS record

SSL certificate info