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firstbus.co.uk screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% 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

  • 91

    SEO

    Google-friendlier than
    70% of websites

firstbus.co.uk

First Bus | Bus Tickets, Timetables & Journey Planning | First Bus

Page Load Speed

3.4 sec in total

First Response

259 ms

Resources Loaded

2.7 sec

Page Rendered

348 ms

firstbus.co.uk screenshot

About Website

Welcome to firstbus.co.uk homepage info - get ready to check First Bus best content for United Kingdom right away, or after learning these important things about firstbus.co.uk

Our UK Bus division operates around a fifth of local bus services in the UK and is one of the largest bus operators with a fleet of approximately 6,400 buses around the England, Scotland and Wales. We...

Visit firstbus.co.uk

Key Findings

We analyzed Firstbus.co.uk page load time and found that the first response time was 259 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

firstbus.co.uk performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.494

17/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

firstbus.co.uk

259 ms

firstbus.co.uk

288 ms

www.firstbus.co.uk

644 ms

js

133 ms

otSDKStub.js

70 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 93% of them (94 requests) were addressed to the original Firstbus.co.uk, 2% (2 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (767 ms) belongs to the original domain Firstbus.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.9 kB (6%)

Content Size

2.4 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Firstbus.co.uk main page is 2.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 65.7 kB

  • Original 76.6 kB
  • After minification 63.6 kB
  • After compression 10.9 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 13.0 kB, which is 17% 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 65.7 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 56.1 kB

  • Original 1.5 MB
  • After minification 1.5 MB

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. First Bus images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.6 kB

  • Original 618.1 kB
  • After minification 618.0 kB
  • After compression 616.5 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

-8%

Potential reduce by 11.4 kB

  • Original 136.9 kB
  • After minification 135.6 kB
  • After compression 125.5 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. Firstbus.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 86 (88%)

Requests Now

98

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of First Bus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 58 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

firstbus.co.uk

firstbus.co.uk

259 ms

firstbus.co.uk

firstbus.co.uk

288 ms

www.firstbus.co.uk

www.firstbus.co.uk

644 ms

js

js

133 ms

otSDKStub.js

otSDKStub.js

70 ms

gtm.js

gtm.js

136 ms

styles.css

styles.css

82 ms

fb-survey.css

fb-survey.css

179 ms

core.css

core.css

264 ms

controlgroup.css

controlgroup.css

252 ms

checkboxradio.css

checkboxradio.css

263 ms

resizable.css

resizable.css

254 ms

button.css

button.css

260 ms

dialog.css

dialog.css

261 ms

align.module.css

align.module.css

322 ms

fieldgroup.module.css

fieldgroup.module.css

325 ms

container-inline.module.css

container-inline.module.css

336 ms

clearfix.module.css

clearfix.module.css

334 ms

details.module.css

details.module.css

336 ms

hidden.module.css

hidden.module.css

337 ms

item-list.module.css

item-list.module.css

393 ms

js.module.css

js.module.css

397 ms

nowrap.module.css

nowrap.module.css

409 ms

position-container.module.css

position-container.module.css

413 ms

reset-appearance.module.css

reset-appearance.module.css

406 ms

resize.module.css

resize.module.css

406 ms

system-status-counter.css

system-status-counter.css

464 ms

system-status-report-counters.css

system-status-report-counters.css

468 ms

system-status-report-general-info.css

system-status-report-general-info.css

476 ms

tablesort.module.css

tablesort.module.css

480 ms

progress.module.css

progress.module.css

482 ms

ajax-progress.module.css

ajax-progress.module.css

485 ms

ckeditor5.dialog.fix.css

ckeditor5.dialog.fix.css

536 ms

theme.css

theme.css

540 ms

tiny-slider.css

tiny-slider.css

59 ms

first-bus.min.css

first-bus.min.css

767 ms

js

js

88 ms

jquery.min.js

jquery.min.js

633 ms

once.min.js

once.min.js

557 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

556 ms

drupal.js

drupal.js

607 ms

drupal.init.js

drupal.init.js

610 ms

version-min.js

version-min.js

634 ms

tiny-slider.js

tiny-slider.js

71 ms

data-min.js

data-min.js

630 ms

disable-selection-min.js

disable-selection-min.js

606 ms

hotjar-3738590.js

hotjar-3738590.js

126 ms

form-min.js

form-min.js

510 ms

jquery-patch-min.js

jquery-patch-min.js

465 ms

scroll-parent-min.js

scroll-parent-min.js

461 ms

unique-id-min.js

unique-id-min.js

456 ms

focusable-min.js

focusable-min.js

496 ms

ie-min.js

ie-min.js

496 ms

keycode-min.js

keycode-min.js

608 ms

plugin-min.js

plugin-min.js

550 ms

safe-active-element-min.js

safe-active-element-min.js

548 ms

safe-blur-min.js

safe-blur-min.js

541 ms

widget-min.js

widget-min.js

539 ms

labels-min.js

labels-min.js

542 ms

controlgroup-min.js

controlgroup-min.js

542 ms

form-reset-mixin-min.js

form-reset-mixin-min.js

488 ms

mouse-min.js

mouse-min.js

484 ms

checkboxradio-min.js

checkboxradio-min.js

494 ms

draggable-min.js

draggable-min.js

495 ms

resizable-min.js

resizable-min.js

505 ms

button-min.js

button-min.js

518 ms

dialog-min.js

dialog-min.js

467 ms

index.umd.min.js

index.umd.min.js

466 ms

tua-bsl.umd.min.js

tua-bsl.umd.min.js

494 ms

progress.js

progress.js

492 ms

loadjs.min.js

loadjs.min.js

501 ms

debounce.js

debounce.js

515 ms

announce.js

announce.js

468 ms

message.js

message.js

464 ms

ajax.js

ajax.js

487 ms

fb-throbber.js

fb-throbber.js

486 ms

displace.js

displace.js

447 ms

jquery.tabbable.shim.js

jquery.tabbable.shim.js

459 ms

position.js

position.js

444 ms

dialog-deprecation.js

dialog-deprecation.js

443 ms

dialog.js

dialog.js

483 ms

dialog.position.js

dialog.position.js

439 ms

dialog.jquery-ui.js

dialog.jquery-ui.js

444 ms

ckeditor5.dialog.fix.js

ckeditor5.dialog.fix.js

433 ms

dialog.ajax.js

dialog.ajax.js

437 ms

first-bus.js

first-bus.js

515 ms

ga4-events.js

ga4-events.js

438 ms

runtime.js

runtime.js

438 ms

polyfills.js

polyfills.js

335 ms

main.js

main.js

564 ms

fb-survey.js

fb-survey.js

355 ms

logo.svg

logo.svg

393 ms

000073-App%20Banner-dt.jpg

000073-App%20Banner-dt.jpg

598 ms

000073-App-Banner.jpg

000073-App-Banner.jpg

400 ms

how-to.jpg

how-to.jpg

562 ms

our-people.jpg

our-people.jpg

561 ms

ev-charging.jpg

ev-charging.jpg

660 ms

recruitment-apr24.jpg

recruitment-apr24.jpg

531 ms

%C2%A32%20fare%20-%20promo%20image.png

%C2%A32%20fare%20-%20promo%20image.png

661 ms

apple.svg

apple.svg

609 ms

google.svg

google.svg

592 ms

Accessibility Review

firstbus.co.uk accessibility score

100

Accessibility Issues

Best Practices

firstbus.co.uk best practices score

83

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

firstbus.co.uk SEO score

91

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

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Firstbus.co.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 Firstbus.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

firstbus.co.uk

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