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cerc.co.uk: CERC, Environmental software and services

CERC (Cambridge, UK) provides environmental software and services for air pollution problems for cities, industries and airports

Page load speed analysis

  • 52/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    1.4 sec

  • Resources loaded

    3.5 sec

  • Page rendered

    505 ms

  • Total page load time

    5.4 sec

Welcome to cerc.co.uk homepage info - get ready to check CERC best content for India right away, or after learning these important things about cerc.co.uk

We analyzed Cerc.co.uk page load time and found that the first response time was 1.4 sec and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Page optimization

  • HTML 31.7 kB
    Images 221.7 kB
    Javascripts 99.5 kB
    CSS 62.7 kB

    In fact, the total size of Cerc.co.uk main page is 415.6 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. 20% of websites need less resources to load. Images take 221.7 kB which makes up the majority of the site volume.

    • Original 31.7 kB
    • After minification 26.9 kB
    • After compression 6.7 kB

    HTML optimization

    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 4.8 kB, which is 15% 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 25.0 kB or 79% of the original size.

    • Original 221.7 kB
    • After optimization 205.5 kB

    Image 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. CERC images are well optimized though.

    • Original 99.5 kB
    • After minification 96.7 kB
    • After compression 34.9 kB

    JavaScript optimization

    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 64.6 kB or 65% of the original size.

    • Original 62.7 kB
    • After minification 43.6 kB
    • After compression 8.6 kB

    CSS optimization

    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. Cerc.co.uk needs all CSS files to be minified and compressed as it can save up to 54.1 kB or 86% of the original size.

Network requests diagram

  • cerc.co.uk
  • jquery-1.8.3.min.js
  • default-design1.css
  • default-design2.css
  • default-content.css
  • tools.js
  • styleswitch.js
  • yui-min.js
  • mapserv
  • yql
  • bgd_bluepale.jpg
  • shadow_topright.jpg
  • shadow_topleft.jpg
  • shadow_top.jpg
  • shadow_right.jpg
  • shadow_left.jpg
  • bgd_blue.jpg
  • CERC_banner.jpg
  • bgd_bluelight.jpg
  • blue.png
  • home_consultancy.jpg
  • home_forecasting_modified.png
  • home_software.jpg
  • home_software2.png
  • home_support.jpg
  • home_about.png
  • thames.png
  • blank.png
  • AirPollution.png
  • Pollen.png
  • UV.png
  • CAMS4UK_20160328_total.png
  • key2.png
  • about.png
  • shadow_bottomright.jpg
  • shadow_bottomleft.jpg
  • shadow_bottom.jpg
  • LOW.png
  • accessi-design.css
  • printer-design.css

Our browser made a total of 40 requests to load all elements on the main page. We found that 90% of them (36 requests) were addressed to the original Cerc.co.uk, 3% (1 request) were made to Ajax.aspnetcdn.com and 3% (1 request) were made to Yui.yahooapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Cerc.co.uk.

Additional info on cerc.co.uk

Requests

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERC. 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 JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

5

Javascripts

29

Images

5

CSS

39

All

Possible request optimization

1

Javascripts

19

Images

1

CSS

18

Optimized

21

All

Normal result

IP address

Cerc.co.uk 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
A

cerc.co.uk

46.29.91.30 60
NS

cerc.co.uk

ns0.zen.co.uk 86400
NS

cerc.co.uk

ns1.zen.co.uk 86400
SOA

cerc.co.uk

86400 Mname: unamuno.zen.co.uk
Rname: netman.zen.co.uk
Serial: 2013072412
Refresh: 1200
Retry: 3600
Expire: 604800
Minimum-ttl: 86400
MX

cerc.co.uk

mailgate.cerc.co.uk 60 Pri: 10

Language and encoding

Normal result

Language

EN en language flag

Detected

EN en language flag

Claimed

Encoding

ISO-8859-1

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cerc.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 Cerc.co.uk main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

HTTPS certificate

SSL Certificate

Cerc.co.uk 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

Visitor World Map

Country of origin for 15% of all visits is India. It lies approximately 4600 miles away from the server location (United Kingdom) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up Cerc.co.uk page load time for the majority of users is moving the server to India or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

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

cerc.co.uk

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