Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

sydenhamdoctors.nhs.uk

Homepage - Sydenham Group Practice

Page Load Speed

1.9 sec in total

First Response

180 ms

Resources Loaded

1.6 sec

Page Rendered

156 ms

sydenhamdoctors.nhs.uk screenshot

About Website

Welcome to sydenhamdoctors.nhs.uk homepage info - get ready to check Sydenham Doctors best content right away, or after learning these important things about sydenhamdoctors.nhs.uk

Visit sydenhamdoctors.nhs.uk

Key Findings

We analyzed Sydenhamdoctors.nhs.uk page load time and found that the first response time was 180 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

sydenhamdoctors.nhs.uk performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value1.119

1/100

15%

TTI (Time to Interactive)

Value8.3 s

40/100

10%

Network Requests Diagram

sydenhamdoctors.nhs.uk

180 ms

sydenhamdoctors.nhs.uk

364 ms

master-upper

177 ms

velocity.min.js

46 ms

polyfill.min.js

107 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 53% of them (18 requests) were addressed to the original Sydenhamdoctors.nhs.uk, 21% (7 requests) were made to Cqc.org.uk and 6% (2 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (726 ms) belongs to the original domain Sydenhamdoctors.nhs.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.8 kB (14%)

Content Size

361.0 kB

After Optimization

311.2 kB

In fact, the total size of Sydenhamdoctors.nhs.uk main page is 361.0 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. 25% of websites need less resources to load. Javascripts take 296.1 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 43.6 kB

  • Original 55.0 kB
  • After minification 47.0 kB
  • After compression 11.4 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 8.0 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 43.6 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 25 B

  • Original 5.8 kB
  • After minification 5.8 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. Sydenham Doctors images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 6.1 kB

  • Original 296.1 kB
  • After minification 296.1 kB
  • After compression 290.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 26 B

  • Original 4.0 kB
  • After minification 4.0 kB
  • After compression 4.0 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. Sydenhamdoctors.nhs.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (57%)

Requests Now

30

After Optimization

13

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sydenham Doctors. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sydenhamdoctors.nhs.uk accessibility score

100

Accessibility Issues

Best Practices

sydenhamdoctors.nhs.uk 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

SEO Factors

sydenhamdoctors.nhs.uk SEO score

92

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

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 Sydenhamdoctors.nhs.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 Sydenhamdoctors.nhs.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

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