Tools & Wizards About Us
geomag.bgs.ac.uk screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

geomag.bgs.ac.uk

BGS Geomagnetism | British Geological Survey | Space weather, magnetic models, geomagnetic data, observatories

Page Load Speed

6 sec in total

First Response

1.9 sec

Resources Loaded

4 sec

Page Rendered

196 ms

geomag.bgs.ac.uk screenshot

About Website

Click here to check amazing Geomag BGS content for United Kingdom. Otherwise, check out these important facts you probably never knew about geomag.bgs.ac.uk

This is the home page of Geomagnetism at the British Geological Survey (BGS). Find information on geomagnetic observatories, modelling, space weather and the World Data Centre (WDC)

Visit geomag.bgs.ac.uk

Key Findings

We analyzed Geomag.bgs.ac.uk page load time and found that the first response time was 1.9 sec and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

geomag.bgs.ac.uk performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

geomag.bgs.ac.uk

1891 ms

gtm.js

61 ms

open_win.js

186 ms

SpryAccordion.js

270 ms

lightbox.js

183 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 70% of them (31 requests) were addressed to the original Geomag.bgs.ac.uk, 11% (5 requests) were made to Youtube-nocookie.com and 5% (2 requests) were made to Resources.bgs.ac.uk. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Geomag.bgs.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (76%)

Content Size

2.3 MB

After Optimization

549.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Geomag.bgs.ac.uk main page is 2.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 21.2 kB

  • Original 26.4 kB
  • After minification 17.5 kB
  • After compression 5.2 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 8.9 kB, which is 34% 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 21.2 kB or 80% of the original size.

Image Optimization

-85%

Potential reduce by 1.6 MB

  • Original 1.8 MB
  • After minification 273.6 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. Obviously, Geomag BGS needs image optimization as it can save up to 1.6 MB or 85% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-32%

Potential reduce by 92.7 kB

  • Original 292.2 kB
  • After minification 279.5 kB
  • After compression 199.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 92.7 kB or 32% of the original size.

CSS Optimization

-42%

Potential reduce by 51.9 kB

  • Original 122.8 kB
  • After minification 109.3 kB
  • After compression 70.9 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. Geomag.bgs.ac.uk needs all CSS files to be minified and compressed as it can save up to 51.9 kB or 42% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (39%)

Requests Now

41

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Geomag BGS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

geomag.bgs.ac.uk

geomag.bgs.ac.uk

1891 ms

gtm.js

gtm.js

61 ms

open_win.js

open_win.js

186 ms

SpryAccordion.js

SpryAccordion.js

270 ms

lightbox.js

lightbox.js

183 ms

lightbox.css

lightbox.css

185 ms

bgsSites.css

bgsSites.css

370 ms

bgsEm.css

bgsEm.css

188 ms

respfooter.css

respfooter.css

281 ms

home.css

home.css

279 ms

homeSlideShow.css

homeSlideShow.css

279 ms

jquery-latest.min.js

jquery-latest.min.js

650 ms

home.js

home.js

360 ms

search.png

search.png

721 ms

gRKnDTcv-CE

gRKnDTcv-CE

162 ms

bulletWhiteBg2.gif

bulletWhiteBg2.gif

717 ms

header_2020.png

header_2020.png

1370 ms

f.gif

f.gif

99 ms

bgsWoB.png

bgsWoB.png

525 ms

aurora_edinburgh_JR_2024-05-10.png

aurora_edinburgh_JR_2024-05-10.png

714 ms

aurora_blog_2024.png

aurora_blog_2024.png

1342 ms

IAR_nodes.png

IAR_nodes.png

392 ms

research.jpg

research.jpg

524 ms

operations.jpg

operations.jpg

524 ms

dataservices.jpg

dataservices.jpg

545 ms

education.jpg

education.jpg

543 ms

activity.jpg

activity.jpg

544 ms

if_blog_col.png

if_blog_col.png

712 ms

if_facebook_col.png

if_facebook_col.png

713 ms

if_instagram_col.png

if_instagram_col.png

713 ms

if_linkedin_col.png

if_linkedin_col.png

802 ms

if_twitter_col.png

if_twitter_col.png

803 ms

if_youtube_col.png

if_youtube_col.png

803 ms

UKRINERCLogo.svg

UKRINERCLogo.svg

803 ms

www-player.css

www-player.css

10 ms

www-embed-player.js

www-embed-player.js

37 ms

base.js

base.js

67 ms

vew3z4FGGfOQQWY0jLwmIOCoLOGxM0mN428VwbwiwhQ.js

vew3z4FGGfOQQWY0jLwmIOCoLOGxM0mN428VwbwiwhQ.js

132 ms

embed.js

embed.js

58 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

49 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

58 ms

Create

Create

120 ms

GenerateIT

GenerateIT

15 ms

mobileSites.css

mobileSites.css

96 ms

Accessibility Review

geomag.bgs.ac.uk accessibility score

84

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

High

<frame> or <iframe> elements do not have a title

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

geomag.bgs.ac.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

geomag.bgs.ac.uk SEO score

96

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](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Geomag.bgs.ac.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Geomag.bgs.ac.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.

Social Sharing Optimization

geomag.bgs.ac.uk

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