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airhistory.org.uk screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

airhistory.org.uk

airhistory main

Page Load Speed

698 ms in total

First Response

200 ms

Resources Loaded

403 ms

Page Rendered

95 ms

airhistory.org.uk screenshot

About Website

Click here to check amazing Airhistory content. Otherwise, check out these important facts you probably never knew about airhistory.org.uk

Aircraft and airmen of the Royal Flying Corps, Royal Air Force, and Civil Aviation between the Wars.

Visit airhistory.org.uk

Key Findings

We analyzed Airhistory.org.uk page load time and found that the first response time was 200 ms and then it took 498 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

airhistory.org.uk performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

airhistory.org.uk

200 ms

main.css

98 ms

SE5.jpg

178 ms

Tiger.jpg

182 ms

DH.jpg

182 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that all of those requests were addressed to Airhistory.org.uk and no external sources were called. The less responsive or slowest element that took the longest time to load (200 ms) belongs to the original domain Airhistory.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.8 kB (4%)

Content Size

73.0 kB

After Optimization

70.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Airhistory.org.uk main page is 73.0 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. Only 10% of websites need less resources to load. Images take 69.1 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 2.1 kB

  • Original 3.2 kB
  • After minification 3.0 kB
  • After compression 1.1 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 2.1 kB or 66% of the original size.

Image Optimization

-1%

Potential reduce by 429 B

  • Original 69.1 kB
  • After minification 68.7 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. Airhistory images are well optimized though.

CSS Optimization

-35%

Potential reduce by 242 B

  • Original 701 B
  • After minification 701 B
  • After compression 459 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. Airhistory.org.uk needs all CSS files to be minified and compressed as it can save up to 242 B or 35% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Airhistory. According to our analytics all requests are already optimized.

Network Requests Diagram

airhistory.org.uk

airhistory.org.uk

200 ms

main.css

main.css

98 ms

SE5.jpg

SE5.jpg

178 ms

Tiger.jpg

Tiger.jpg

182 ms

DH.jpg

DH.jpg

182 ms

Spit.jpg

Spit.jpg

187 ms

Hurri.jpg

Hurri.jpg

191 ms

Accessibility Review

airhistory.org.uk accessibility score

96

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

airhistory.org.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

airhistory.org.uk SEO score

100

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Airhistory.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 Airhistory.org.uk main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

airhistory.org.uk

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