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bolts.co.uk screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

bolts.co.uk

Nuts, Bolts & Screws | Fixing & Fastener Specialist | Bolts.co.uk

Page Load Speed

3.7 sec in total

First Response

149 ms

Resources Loaded

3.5 sec

Page Rendered

80 ms

bolts.co.uk screenshot

About Website

Click here to check amazing Bolts content for United Kingdom. Otherwise, check out these important facts you probably never knew about bolts.co.uk

Bolts.co.uk is an independent, specialist supplier of fasteners and fixings, including nuts, bolts and screws. Free next day delivery on orders over £60.

Visit bolts.co.uk

Key Findings

We analyzed Bolts.co.uk page load time and found that the first response time was 149 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

bolts.co.uk performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value20.8 s

0/100

25%

SI (Speed Index)

Value22.8 s

0/100

10%

TBT (Total Blocking Time)

Value14,450 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.216

58/100

15%

TTI (Time to Interactive)

Value44.5 s

0/100

10%

Network Requests Diagram

bolts.co.uk

149 ms

www.bolts.co.uk

425 ms

calendar.min.css

135 ms

core-m.min.css

212 ms

core-l.min.css

352 ms

Our browser made a total of 231 requests to load all elements on the main page. We found that 89% of them (205 requests) were addressed to the original Bolts.co.uk, 2% (4 requests) were made to Use.fontawesome.com and 1% (3 requests) were made to Dmp.e.bolts.co.uk. The less responsive or slowest element that took the longest time to load (655 ms) belongs to the original domain Bolts.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 822.0 kB (23%)

Content Size

3.5 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bolts.co.uk main page is 3.5 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 653.5 kB

  • Original 699.9 kB
  • After minification 312.9 kB
  • After compression 46.4 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 387.1 kB, which is 55% 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 653.5 kB or 93% of the original size.

Image Optimization

-3%

Potential reduce by 59.9 kB

  • Original 1.9 MB
  • After minification 1.9 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. Bolts images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 108.5 kB

  • Original 779.8 kB
  • After minification 773.4 kB
  • After compression 671.2 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 108.5 kB or 14% of the original size.

CSS Optimization

-0%

Potential reduce by 80 B

  • Original 114.7 kB
  • After minification 114.7 kB
  • After compression 114.6 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. Bolts.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 156 (73%)

Requests Now

215

After Optimization

59

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 215 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bolts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 147 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bolts.co.uk

bolts.co.uk

149 ms

www.bolts.co.uk

www.bolts.co.uk

425 ms

calendar.min.css

calendar.min.css

135 ms

core-m.min.css

core-m.min.css

212 ms

core-l.min.css

core-l.min.css

352 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

227 ms

luma.min.css

luma.min.css

227 ms

styles.min.css

styles.min.css

227 ms

location.min.css

location.min.css

228 ms

slick.min.css

slick.min.css

278 ms

slick-theme.min.css

slick-theme.min.css

286 ms

content.min.css

content.min.css

288 ms

all.css

all.css

138 ms

require.js

require.js

382 ms

mixins.js

mixins.js

299 ms

requirejs-config.js

requirejs-config.js

347 ms

core.js

core.js

381 ms

klevu.js

klevu.js

62 ms

quick-search-theme.js

quick-search-theme.js

74 ms

klarna.js

klarna.js

38 ms

k42qn0wi.js

k42qn0wi.js

334 ms

logo

logo

201 ms

bolts_logo.png

bolts_logo.png

95 ms

bolts_logo_favi.png

bolts_logo_favi.png

95 ms

pbs_logo_favi.png

pbs_logo_favi.png

165 ms

ds_logo_favi.png

ds_logo_favi.png

94 ms

gs_logo_favi.png

gs_logo_favi.png

95 ms

pvc_logo_favi.png

pvc_logo_favi.png

95 ms

bfs_logo_favi.png

bfs_logo_favi.png

163 ms

cmp_logo_favi.png

cmp_logo_favi.png

162 ms

soak_logo_favi.png

soak_logo_favi.png

254 ms

dgs_logo_white.png

dgs_logo_white.png

249 ms

Visa.png

Visa.png

163 ms

Mastercard.png

Mastercard.png

254 ms

Maestro.png

Maestro.png

254 ms

AMEX.png

AMEX.png

253 ms

Apple_Pay.png

Apple_Pay.png

251 ms

Google_Pay.png

Google_Pay.png

324 ms

Klarna.png

Klarna.png

382 ms

13thFeb2024.jpg

13thFeb2024.jpg

382 ms

BTS_Free_Gift_MOB.gif

BTS_Free_Gift_MOB.gif

383 ms

bolts_white.png

bolts_white.png

379 ms

jquery.js

jquery.js

473 ms

common.js

common.js

382 ms

dataPost.js

dataPost.js

444 ms

bootstrap.js

bootstrap.js

444 ms

app.js

app.js

442 ms

form-key-provider.js

form-key-provider.js

446 ms

infinitytrack.js

infinitytrack.js

83 ms

gtm.js

gtm.js

83 ms

mage-translation-dictionary.js

mage-translation-dictionary.js

428 ms

theme.js

theme.js

488 ms

theme.js

theme.js

491 ms

weltpixel_persistentlayer.js

weltpixel_persistentlayer.js

476 ms

weltpixel_gtm.js

weltpixel_gtm.js

477 ms

jquery-mixin.js

jquery-mixin.js

457 ms

customer-data.js

customer-data.js

483 ms

customer-data-mixin.js

customer-data-mixin.js

517 ms

customer-data-mixins.js

customer-data-mixins.js

525 ms

GothamPro-Medium.woff

GothamPro-Medium.woff

525 ms

fa-solid-900.woff

fa-solid-900.woff

92 ms

fa-regular-400.woff

fa-regular-400.woff

152 ms

GothamPro.woff

GothamPro.woff

502 ms

GothamPro-Light.woff

GothamPro-Light.woff

501 ms

GothamPro-Bold.woff

GothamPro-Bold.woff

541 ms

GothamPro-Black.woff

GothamPro-Black.woff

559 ms

opensans-400.woff

opensans-400.woff

575 ms

analytics.js

analytics.js

115 ms

bat.js

bat.js

107 ms

61lbhwsle2

61lbhwsle2

142 ms

tracking.js

tracking.js

124 ms

358-22795.js

358-22795.js

395 ms

collect.js

collect.js

417 ms

opensans-300.woff

opensans-300.woff

509 ms

opensans-600.woff

opensans-600.woff

508 ms

opensans-700.woff

opensans-700.woff

506 ms

Blank-Theme-Icons.woff

Blank-Theme-Icons.woff

523 ms

fa-brands-400.woff

fa-brands-400.woff

99 ms

gtm.js

gtm.js

57 ms

123 ms

registry.js

registry.js

474 ms

storage.js

storage.js

477 ms

domReady.js

domReady.js

477 ms

mage.js

mage.js

479 ms

catalog-add-to-quote.js

catalog-add-to-quote.js

480 ms

tracking.js

tracking.js

501 ms

collect

collect

52 ms

clarity.js

clarity.js

33 ms

collect

collect

47 ms

catalog-add-to-cart.js

catalog-add-to-cart.js

465 ms

ga-audiences

ga-audiences

84 ms

catalog-add-to-cart-mixin.js

catalog-add-to-cart-mixin.js

433 ms

boltshomepagemain.jpg

boltshomepagemain.jpg

640 ms

BoltsSealantsHomepageBannerDemsunOffer2.gif

BoltsSealantsHomepageBannerDemsunOffer2.gif

655 ms

Woodscrews-Square.jpg

Woodscrews-Square.jpg

514 ms

ConstructionFixings.jpg

ConstructionFixings.jpg

449 ms

Bolts_And_Set_Screws.png

Bolts_And_Set_Screws.png

408 ms

Nuts.png

Nuts.png

499 ms

main.js

main.js

454 ms

bootstrap.js

bootstrap.js

472 ms

template.js

template.js

512 ms

confirm.js

confirm.js

484 ms

widget.js

widget.js

478 ms

text.js

text.js

497 ms

types.js

types.js

512 ms

layout.js

layout.js

520 ms

smart-keyboard-handler.js

smart-keyboard-handler.js

540 ms

1.11.2-20170607.min.js

1.11.2-20170607.min.js

5 ms

px

px

16 ms

slick.js

slick.js

546 ms

k42qn0wi_1696855693968_es5.js

k42qn0wi_1696855693968_es5.js

34 ms

slick-lightbox.js

slick-lightbox.js

507 ms

bulk-pricing.js

bulk-pricing.js

511 ms

events.js

events.js

513 ms

qty.js

qty.js

521 ms

vat.js

vat.js

532 ms

underscore.js

underscore.js

531 ms

local.js

local.js

516 ms

wrapper.js

wrapper.js

517 ms

Washers_Smaller.png

Washers_Smaller.png

517 ms

Screws_2.png

Screws_2.png

518 ms

Machine_Screws_5.png

Machine_Screws_5.png

524 ms

Socket_Screws.png

Socket_Screws.png

551 ms

Security_Screws_Smaller.png

Security_Screws_Smaller.png

520 ms

Construction_Fixings_New.png

Construction_Fixings_New.png

518 ms

amazon-pay-config.js

amazon-pay-config.js

516 ms

storage-wrapper.js

storage-wrapper.js

520 ms

translate.js

translate.js

536 ms

jquery.fancybox.js

jquery.fancybox.js

560 ms

product-ids-resolver.js

product-ids-resolver.js

523 ms

product-info-resolver.js

product-info-resolver.js

506 ms

product-info-resolver.js

product-info-resolver.js

482 ms

Threaded_Rod_Smaller.png

Threaded_Rod_Smaller.png

486 ms

Riveting_Smaller.png

Riveting_Smaller.png

447 ms

Pins_And_Clips_2.png

Pins_And_Clips_2.png

477 ms

scripts.js

scripts.js

456 ms

knockout.js

knockout.js

469 ms

knockout-es5.js

knockout-es5.js

466 ms

engine.js

engine.js

459 ms

bootstrap.js

bootstrap.js

435 ms

observable_array.js

observable_array.js

431 ms

bound-nodes.js

bound-nodes.js

429 ms

modal.js

modal.js

455 ms

version.js

version.js

452 ms

js-translation.json

js-translation.json

444 ms

main.js

main.js

428 ms

console-logger.js

console-logger.js

422 ms

Ironmongery_2.png

Ironmongery_2.png

423 ms

Cutting_Tools_And_Abrasives_3.png

Cutting_Tools_And_Abrasives_3.png

451 ms

Sealants_And_Adhesives_3.png

Sealants_And_Adhesives_3.png

450 ms

Hand_Tools_And_Consumables_3.png

Hand_Tools_And_Consumables_3.png

443 ms

multi-kits.png

multi-kits.png

496 ms

Cable_Ties_3.png

Cable_Ties_3.png

413 ms

events.js

events.js

405 ms

Helicoils.png

Helicoils.png

509 ms

Grease_Nipples.png

Grease_Nipples.png

443 ms

Shaft_Collars_Even_Smaller.png

Shaft_Collars_Even_Smaller.png

507 ms

Lindapter_Smaller.png

Lindapter_Smaller.png

523 ms

Hook_And_Eye_Bolts_Lifting_Eye_Bolt.png

Hook_And_Eye_Bolts_Lifting_Eye_Bolt.png

416 ms

Fabrication.png

Fabrication.png

467 ms

js.storage.js

js.storage.js

445 ms

product-ids.js

product-ids.js

408 ms

product-info.js

product-info.js

420 ms

knockout-repeat.js

knockout-repeat.js

329 ms

knockout-fast-foreach.js

knockout-fast-foreach.js

329 ms

renderer.js

renderer.js

332 ms

resizable.js

resizable.js

349 ms

i18n.js

i18n.js

351 ms

scope.js

scope.js

386 ms

range.js

range.js

393 ms

mage-init.js

mage-init.js

393 ms

keyboard.js

keyboard.js

398 ms

optgroup.js

optgroup.js

416 ms

after-render.js

after-render.js

417 ms

autoselect.js

autoselect.js

452 ms

datepicker.js

datepicker.js

459 ms

outer_click.js

outer_click.js

454 ms

fadeVisible.js

fadeVisible.js

459 ms

collapsible.js

collapsible.js

438 ms

staticChecked.js

staticChecked.js

438 ms

simple-checked.js

simple-checked.js

473 ms

bind-html.js

bind-html.js

480 ms

tooltip.js

tooltip.js

454 ms

color-picker.js

color-picker.js

457 ms

observable_source.js

observable_source.js

441 ms

modal-popup.html

modal-popup.html

442 ms

modal-slide.html

modal-slide.html

475 ms

modal-custom.html

modal-custom.html

455 ms

key-codes.js

key-codes.js

455 ms

core.js

core.js

419 ms

z-index.js

z-index.js

435 ms

arrays.js

arrays.js

408 ms

compare.js

compare.js

408 ms

misc.js

misc.js

413 ms

objects.js

objects.js

413 ms

strings.js

strings.js

405 ms

template.js

template.js

409 ms

logger.js

logger.js

404 ms

entry-factory.js

entry-factory.js

406 ms

console-output-handler.js

console-output-handler.js

412 ms

formatter.js

formatter.js

412 ms

message-pool.js

message-pool.js

409 ms

levels-pool.js

levels-pool.js

408 ms

logger-utils.js

logger-utils.js

406 ms

jquery.cookie.js

jquery.cookie.js

407 ms

loader.js

loader.js

412 ms

async.js

async.js

416 ms

tooltip.html

tooltip.html

278 ms

spectrum.js

spectrum.js

297 ms

tinycolor.js

tinycolor.js

304 ms

class.js

class.js

308 ms

data.js

data.js

264 ms

disable-selection.js

disable-selection.js

266 ms

focusable.js

focusable.js

267 ms

form.js

form.js

291 ms

ie.js

ie.js

294 ms

keycode.js

keycode.js

318 ms

labels.js

labels.js

331 ms

jquery-patch.js

jquery-patch.js

331 ms

plugin.js

plugin.js

333 ms

safe-active-element.js

safe-active-element.js

356 ms

safe-blur.js

safe-blur.js

358 ms

scroll-parent.js

scroll-parent.js

384 ms

tabbable.js

tabbable.js

397 ms

unique-id.js

unique-id.js

398 ms

entry.js

entry.js

283 ms

moment.js

moment.js

301 ms

cookie-wrapper.js

cookie-wrapper.js

254 ms

dom-observer.js

dom-observer.js

247 ms

bindings.js

bindings.js

261 ms

js.cookie.js

js.cookie.js

69 ms

Accessibility Review

bolts.co.uk accessibility score

79

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

bolts.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

Page has valid source maps

SEO Factors

bolts.co.uk SEO score

86

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

Links do not have descriptive text

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

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 Bolts.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 Bolts.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

bolts.co.uk

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