Tools & Wizards About Us
btf-thyroid.org screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    57% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

btf-thyroid.org

The British Thyroid Foundation (BTF)

Page Load Speed

5.6 sec in total

First Response

1.5 sec

Resources Loaded

3.7 sec

Page Rendered

492 ms

btf-thyroid.org screenshot

About Website

Visit btf-thyroid.org now to see the best up-to-date BTF Thyroid content for United States and also check out these interesting facts you probably never knew about btf-thyroid.org

We provide evidence-based information and support to help people in the UK to live better with thyroid disease.

Visit btf-thyroid.org

Key Findings

We analyzed Btf-thyroid.org page load time and found that the first response time was 1.5 sec and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

btf-thyroid.org performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value6.7 s

37/100

10%

TBT (Total Blocking Time)

Value1,090 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

btf-thyroid.org

1450 ms

css-4f5ab.css

829 ms

css-8dac1.css

761 ms

js-4e574.js

958 ms

system.css

215 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 68% of them (26 requests) were addressed to the original Btf-thyroid.org, 11% (4 requests) were made to Platform.twitter.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Btf-thyroid.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 394.1 kB (38%)

Content Size

1.0 MB

After Optimization

654.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Btf-thyroid.org main page is 1.0 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. 30% of websites need less resources to load. Images take 555.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 60.7 kB

  • Original 73.2 kB
  • After minification 64.3 kB
  • After compression 12.5 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 9.0 kB, which is 12% 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 60.7 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 23.5 kB

  • Original 555.6 kB
  • After minification 532.1 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. BTF Thyroid images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 117.0 kB

  • Original 189.4 kB
  • After minification 189.4 kB
  • After compression 72.4 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 117.0 kB or 62% of the original size.

CSS Optimization

-84%

Potential reduce by 192.9 kB

  • Original 230.6 kB
  • After minification 223.4 kB
  • After compression 37.7 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. Btf-thyroid.org needs all CSS files to be minified and compressed as it can save up to 192.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (22%)

Requests Now

37

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BTF Thyroid. 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.

Network Requests Diagram

btf-thyroid.org

btf-thyroid.org

1450 ms

css-4f5ab.css

css-4f5ab.css

829 ms

css-8dac1.css

css-8dac1.css

761 ms

js-4e574.js

js-4e574.js

958 ms

system.css

system.css

215 ms

widgets.js

widgets.js

144 ms

button-1.gif

button-1.gif

703 ms

btflogo.jpg

btflogo.jpg

294 ms

facebook.png

facebook.png

199 ms

twitter.png

twitter.png

239 ms

youtube.png

youtube.png

239 ms

homebanner.jpg

homebanner.jpg

823 ms

quick_guides_sm.jpg

quick_guides_sm.jpg

548 ms

campaigns2.jpg

campaigns2.jpg

518 ms

get_involved_sm.jpg

get_involved_sm.jpg

573 ms

support_sm.jpg

support_sm.jpg

657 ms

sm_thyroid_diagram.png

sm_thyroid_diagram.png

589 ms

Morrisons-Great-North-Run3.jpg

Morrisons-Great-North-Run3.jpg

942 ms

sm_awards_split.jpg

sm_awards_split.jpg

748 ms

teddybanner.jpg

teddybanner.jpg

951 ms

sign_petition.png

sign_petition.png

797 ms

levothyroxine.png

levothyroxine.png

853 ms

survey-graphic.png

survey-graphic.png

1047 ms

newsletter_images.png

newsletter_images.png

1592 ms

btalogo.jpg

btalogo.jpg

1234 ms

links_baets.png

links_baets.png

1054 ms

analytics.js

analytics.js

27 ms

redbg.png

redbg.png

1115 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1404 ms

collect

collect

27 ms

timeline.1b43d11859b7663a2225b885f87704a5.js

timeline.1b43d11859b7663a2225b885f87704a5.js

147 ms

syndication

syndication

85 ms

611123329114730497

611123329114730497

151 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

29 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

72 ms

btflogo_normal.png

btflogo_normal.png

87 ms

KDkuYEwF_normal.jpg

KDkuYEwF_normal.jpg

46 ms

jot

jot

26 ms

Accessibility Review

btf-thyroid.org accessibility score

92

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role]s are not contained by their required parent element

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.

Best Practices

btf-thyroid.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

btf-thyroid.org SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Btf-thyroid.org 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 Btf-thyroid.org 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

btf-thyroid.org

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