Blpc.bl.uk Site Title

The British Library - The British Library

Blpc.bl.uk Meta Description

The British Library home page, For research, inspiration and enjoyment

Blpc.bl.uk Test Results

Blpc.bl.uk Mobile Performance: 42/100
Quick overview:
Max Potential First Input Delay
450 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Time to Interactive
10.4 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Reduce JavaScript execution time
1.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Enable text compression
Potential savings of 417 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.
Reduce unused CSS
Potential savings of 10 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Reduce the impact of third-party code
Third-party code blocked the main thread for 680 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.
Serve images in next-gen formats
Potential savings of 574 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.
Largest Contentful Paint element
9,540 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Minimize main-thread work
2.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Avoid multiple page redirects
Potential savings of 1,890 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Reduce initial server response time
Root document took 850 ms
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Reduce unused JavaScript
Potential savings of 304 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Avoid serving legacy JavaScript to modern browsers
Potential savings of 19 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScript
Serve static assets with an efficient cache policy
1 resource found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Efficiently encode images
Potential savings of 161 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.

Blpc.bl.uk Mobile SEO: 92/100
Quick overview:
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Links do not have descriptive text
1 link found
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Blpc.bl.uk Mobile Best Practices: 79/100
Quick overview:
General
Browser errors were logged to the console
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Trust and Safety
Does not use HTTPS
1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Blpc.bl.uk Mobile Accessibility: 96/100
Quick overview:
Best practices
These items highlight common accessibility best practices.
Touch targets do not have sufficient size or spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Similar sites
Similar tests
www.blpc.com
www.blpc.net
www.blpc.org
www.blpc.info
www.blpc.biz
www.blpc.us
www.blpc.mobi
www.lpc.bl.uk
www.blpc.bl.uk
www.vlpc.bl.uk
www.bvlpc.bl.uk
www.vblpc.bl.uk
www.glpc.bl.uk
www.bglpc.bl.uk
www.gblpc.bl.uk
www.hlpc.bl.uk
www.bhlpc.bl.uk
www.hblpc.bl.uk
www.nlpc.bl.uk
www.bnlpc.bl.uk
www.nblpc.bl.uk
www.bpc.bl.uk
www.bppc.bl.uk
www.blppc.bl.uk
www.bplpc.bl.uk
www.bopc.bl.uk
www.blopc.bl.uk
www.bolpc.bl.uk
www.bkpc.bl.uk
www.blkpc.bl.uk
www.bklpc.bl.uk
www.blc.bl.uk
www.bloc.bl.uk
www.blpoc.bl.uk
www.bllc.bl.uk
www.blplc.bl.uk
www.bllpc.bl.uk
www.blp.bl.uk
www.blpx.bl.uk
www.blpcx.bl.uk
www.blpxc.bl.uk
www.blpd.bl.uk
www.blpcd.bl.uk
www.blpdc.bl.uk
www.blpf.bl.uk
www.blpcf.bl.uk
www.blpfc.bl.uk
www.blpv.bl.uk
www.blpcv.bl.uk
www.blpvc.bl.uk
Last Tested: