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ba.co.uk screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

ba.co.uk

British Airways | Book Flights, Holidays, City Breaks & Check In Online

Page Load Speed

453 ms in total

First Response

39 ms

Resources Loaded

360 ms

Page Rendered

54 ms

ba.co.uk screenshot

About Website

Click here to check amazing Ba content. Otherwise, check out these important facts you probably never knew about ba.co.uk

Save on worldwide flights and holidays when you book directly with British Airways. Browse our guides, find great deals, manage your booking and check in online.

Visit ba.co.uk

Key Findings

We analyzed Ba.co.uk page load time and found that the first response time was 39 ms and then it took 414 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster. This domain responded with an error, which can significantly jeopardize Ba.co.uk rating and web reputation

Performance Metrics

ba.co.uk performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

www.ba.com

39 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Ba.co.uk and no external sources were called. The less responsive or slowest element that took the longest time to load (39 ms) relates to the external source Ba.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (51%)

Content Size

2.5 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ba.co.uk main page is 2.5 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-48%

Potential reduce by 4.3 kB

  • Original 9.0 kB
  • After minification 8.8 kB
  • After compression 4.7 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 4.3 kB or 48% of the original size.

Image Optimization

-17%

Potential reduce by 179.8 kB

  • Original 1.1 MB
  • After minification 892.4 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, Ba needs image optimization as it can save up to 179.8 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 954.3 kB

  • Original 1.3 MB
  • After minification 1.0 MB
  • After compression 298.2 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 954.3 kB or 76% of the original size.

CSS Optimization

-84%

Potential reduce by 118.8 kB

  • Original 140.7 kB
  • After minification 107.1 kB
  • After compression 22.0 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. Ba.co.uk needs all CSS files to be minified and compressed as it can save up to 118.8 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

www.ba.com

www.ba.com

39 ms

Accessibility Review

ba.co.uk accessibility score

94

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

ARIA IDs are not unique

Best Practices

ba.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

ba.co.uk SEO score

81

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

High

robots.txt is not valid

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 Ba.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 Ba.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

ba.co.uk

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