Analyze - The UK Tandem Bike Site from JD Tandems - JD Tandems

JD Tandems are the UK's largest stockist of Tandem Bikes in the UK. Their site covers both tandeming and all the tandems and tandem accessories any budding cylist will ever need!

Page load speed analysis

  • 53/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    2.3 sec

  • Resources loaded

    4.7 sec

  • Page rendered

    318 ms

  • Total page load time

    7.3 sec

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

We analyzed page load time and found that the first response time was 2.3 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Page optimization

  • HTML 49.8 kB
    Images 422.4 kB
    Javascripts 0 B
    CSS 71.4 kB

    In fact, the total size of main page is 543.5 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. 15% of websites need less resources to load. Images take 422.4 kB which makes up the majority of the site volume.

    • Original 49.8 kB
    • After minification 47.3 kB
    • After compression 10.3 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. 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 39.5 kB or 79% of the original size.

    • Original 422.4 kB
    • After optimization 418.5 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. Tandems images are well optimized though.

    • Original 71.4 kB
    • After minification 52.0 kB
    • After compression 9.6 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. needs all CSS files to be minified and compressed as it can save up to 61.8 kB or 87% of the original size.

Network requests diagram

  • css
  • stylesV3.css
  • defaultStylesV3.css
  • customStylesV3.css
  • twittericon.png
  • jdTandemsLogo.png
  • slider-1.jpg
  • slider-2.jpg
  • slider-3.jpg
  • slider-4.jpg
  • slider-5.jpg
  • jd_slider-6.jpg
  • why-ride-tandems.jpg
  • what-our-customers-say.jpg
  • tandems-explained.jpg
  • 122hli-t20.jpg
  • 123hli-yorks.jpg
  • 128hli-imag1499.jpg
  • 127hli-edrive-001.jpg
  • bodyBackground.png
  • headerBackground.png
  • cartBasketBG.png
  • cartCheckoutBG.png
  • navIconMaster-export.png
  • searchIconMaster-export.png
  • basketIconMaster-export.png
  • slideControllerOFF.png
  • blockReadMoreLink.png
  • articleReadMore.png
  • templateGoButton.png
  • categoryH5.png
  • r4interview.jpg
  • securedsite.png
  • v12.gif
  • templateSubscribeButton.png
  • orbit-tandems-logo.png
  • santana-tandems-logo.png
  • cannondale-logo.png
  • cyfac-logo.png
  • circe-cycles-logo.png
  • hase-bikes-logo.png
  • ventana-bikes-logo.png
  • dawes-cycles-logo.png
  • siteFootersBackground.png
  • img_9536.jpeg
  • slideControllerON.png
  • -KZsao_xwBpcExaHoPH8_w.ttf

Our browser made a total of 48 requests to load all elements on the main page. We found that 96% of them (46 requests) were addressed to the original, 2% (1 request) were made to and 2% (1 request) were made to The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain

Additional info on


The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tandems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.







Possible request optimization









Normal result

IP address 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 298
NS 300
NS 300
NS 300
NS 300

Language and encoding

Normal result


N/A  language flag


EN en language flag





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. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. 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.

HTTPS certificate

SSL Certificate 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 57.8% of all visits is United Kingdom. It’s good for 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

Poor result

Social Sharing Optimization

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