Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

raf-surplus.co.uk

Vintage Aircraft Instruments and Spare Parts

Page Load Speed

1.2 sec in total

First Response

64 ms

Resources Loaded

796 ms

Page Rendered

332 ms

raf-surplus.co.uk screenshot

About Website

Visit raf-surplus.co.uk now to see the best up-to-date Raf Surplus content and also check out these interesting facts you probably never knew about raf-surplus.co.uk

ex RAF WW2 aircraft parts, aircraft instruments, aviation ephemera, flying clothing, aviation memorabilia and aircraft manuals.

Visit raf-surplus.co.uk

Key Findings

We analyzed Raf-surplus.co.uk page load time and found that the first response time was 64 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

raf-surplus.co.uk performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

raf-surplus.co.uk

64 ms

www.raf-surplus.co.uk

75 ms

webfont.js

27 ms

jquery.min.js

32 ms

flyoutmenu.css

32 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 34% of them (12 requests) were addressed to the original Raf-surplus.co.uk, 17% (6 requests) were made to Apis.google.com and 11% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (425 ms) relates to the external source Developers.google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.5 kB (14%)

Content Size

305.1 kB

After Optimization

262.5 kB

In fact, the total size of Raf-surplus.co.uk main page is 305.1 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. 40% of websites need less resources to load. Javascripts take 203.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 28.4 kB

  • Original 37.1 kB
  • After minification 36.1 kB
  • After compression 8.6 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 28.4 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 1.1 kB

  • Original 63.8 kB
  • After minification 62.7 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. Raf Surplus images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 12.8 kB

  • Original 203.2 kB
  • After minification 202.7 kB
  • After compression 190.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-20%

Potential reduce by 203 B

  • Original 1.0 kB
  • After minification 966 B
  • After compression 801 B

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. Raf-surplus.co.uk needs all CSS files to be minified and compressed as it can save up to 203 B or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (45%)

Requests Now

31

After Optimization

17

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Raf Surplus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

raf-surplus.co.uk accessibility score

69

Accessibility Issues

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

High

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

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

Best Practices

raf-surplus.co.uk best practices score

58

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

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

raf-surplus.co.uk SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Raf-surplus.co.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 Raf-surplus.co.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 Raf Surplus. 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: