2.5 sec in total
320 ms
2 sec
159 ms
Click here to check amazing ISTD content for United Kingdom. Otherwise, check out these important facts you probably never knew about istd.org.uk
Visit istd.org.ukWe analyzed Istd.org.uk page load time and found that the first response time was 320 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
istd.org.uk performance score
name
value
score
weighting
Value2.3 s
76/100
10%
Value7.9 s
3/100
25%
Value4.3 s
77/100
10%
Value150 ms
94/100
30%
Value0.008
100/100
15%
Value4.0 s
87/100
10%
320 ms
488 ms
290 ms
278 ms
16 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 76% of them (28 requests) were addressed to the original Istd.org.uk, 14% (5 requests) were made to Pbs.twimg.com and 5% (2 requests) were made to Fast.fonts.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Istd.org.uk.
Page size can be reduced by 528.5 kB (13%)
3.9 MB
3.4 MB
In fact, the total size of Istd.org.uk main page is 3.9 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. 25% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.
Potential reduce by 18.8 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 18.8 kB or 78% of the original size.
Potential reduce by 285.9 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. ISTD images are well optimized though.
Potential reduce by 34 B
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.
Potential reduce by 223.7 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. Istd.org.uk needs all CSS files to be minified and compressed as it can save up to 223.7 kB or 66% of the original size.
We found no issues to fix!
34
34
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISTD. According to our analytics all requests are already optimized.
istd.org.uk
320 ms
www.istd.org.uk
488 ms
app.v1481215001.css
290 ms
project-style.css
278 ms
a15ba278-4473-47db-b798-5700eb46d8a0.css
16 ms
VgkOrEak_normal.jpg
21 ms
app.v1468339701.js
528 ms
w9kVorXp_normal.jpg
13 ms
AhVkNe1I_normal.jpg
18 ms
atypilogovesta_normal.jpg
14 ms
iRbjuM0K_normal.jpg
14 ms
878908984.jpg
435 ms
344473781.png
603 ms
853322891.jpg
425 ms
229261213.jpg
447 ms
434329709.png
670 ms
309854460.jpg
636 ms
663943879.jpg
1165 ms
643463993.png
1108 ms
321771663.png
806 ms
730789950.png
703 ms
534947921.png
726 ms
983648306.png
755 ms
665640498.png
801 ms
472807428.png
984 ms
657950592.png
835 ms
902829574.png
881 ms
249625946.png
884 ms
846392368.png
917 ms
274344529.png
964 ms
738642639.png
964 ms
929167302.png
1117 ms
832430257.png
1049 ms
687456786.png
1052 ms
20ed2fae-246b-4199-a71b-6f85ae7bafc4.woff
3 ms
ga.js
27 ms
__utm.gif
11 ms
istd.org.uk accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
istd.org.uk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
istd.org.uk SEO score
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Istd.org.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 Istd.org.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.
istd.org.uk
Open Graph description is not detected on the main page of ISTD. 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: