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therobson.com screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

therobson.com

Starters & Alternators for Trucks & More | Robert's & Sons

Page Load Speed

4.6 sec in total

First Response

1.1 sec

Resources Loaded

3.1 sec

Page Rendered

372 ms

therobson.com screenshot

About Website

Welcome to therobson.com homepage info - get ready to check Therobson best content for China right away, or after learning these important things about therobson.com

We have thousands of parts: air conditioning compressors, starters, alternators, lights for HD trucks, agriculture, marine, industrial, construction machinery & more.

Visit therobson.com

Key Findings

We analyzed Therobson.com page load time and found that the first response time was 1.1 sec and then it took 3.5 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

therobson.com performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

31/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

www.robertsandson.com

1094 ms

69fdcd82ccb770d61e05ee509b0a3f98.min.css

42 ms

styles-l.min.css

70 ms

ca865ac5f3b33f28911985d613e887f0.min.js

37 ms

css

34 ms

Our browser made a total of 184 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Therobson.com, 7% (12 requests) were made to Fonts.gstatic.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Robertsandson.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 348.1 kB (22%)

Content Size

1.6 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Therobson.com main page is 1.6 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. 65% of websites need less resources to load. Images take 795.4 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 168.0 kB

  • Original 187.1 kB
  • After minification 182.8 kB
  • After compression 19.1 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 168.0 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 3.7 kB

  • Original 795.4 kB
  • After minification 791.7 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. Therobson images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 16.8 kB

  • Original 309.7 kB
  • After minification 309.5 kB
  • After compression 292.8 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

-58%

Potential reduce by 159.5 kB

  • Original 276.6 kB
  • After minification 276.4 kB
  • After compression 117.1 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. Therobson.com needs all CSS files to be minified and compressed as it can save up to 159.5 kB or 58% of the original size.

Requests Breakdown

Number of requests can be reduced by 121 (71%)

Requests Now

170

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 170 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Therobson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 119 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.robertsandson.com

www.robertsandson.com

1094 ms

69fdcd82ccb770d61e05ee509b0a3f98.min.css

69fdcd82ccb770d61e05ee509b0a3f98.min.css

42 ms

styles-l.min.css

styles-l.min.css

70 ms

ca865ac5f3b33f28911985d613e887f0.min.js

ca865ac5f3b33f28911985d613e887f0.min.js

37 ms

css

css

34 ms

gtm.js

gtm.js

103 ms

pattern.jpg

pattern.jpg

20 ms

logo.png

logo.png

27 ms

hero.jpg

hero.jpg

40 ms

Alternators_1.jpg

Alternators_1.jpg

19 ms

Starters.jpg

Starters.jpg

26 ms

Motors.jpg

Motors.jpg

27 ms

Battery_Wire_Terminal.jpg

Battery_Wire_Terminal.jpg

32 ms

Tools_Equipment.jpg

Tools_Equipment.jpg

33 ms

Vehicle_Lighting_.jpg

Vehicle_Lighting_.jpg

42 ms

SHPE1500.jpg

SHPE1500.jpg

34 ms

Liftgate_Hydraulic_3.jpg

Liftgate_Hydraulic_3.jpg

42 ms

Air_Conditioning.jpg

Air_Conditioning.jpg

41 ms

Cargo_Control_Towing_1.jpg

Cargo_Control_Towing_1.jpg

46 ms

630-10131.jpg

630-10131.jpg

43 ms

Power_Management.jpg

Power_Management.jpg

48 ms

FR610G.jpg

FR610G.jpg

72 ms

Belts_Pulleys_Tensioners.jpg

Belts_Pulleys_Tensioners.jpg

48 ms

Engine_Cooling.jpg

Engine_Cooling.jpg

51 ms

Shop_Supplies.jpg

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50 ms

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72 ms

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78 ms

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79 ms

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78 ms

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79 ms

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79 ms

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79 ms

jquery.mobile.custom.min.js

jquery.mobile.custom.min.js

79 ms

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common.min.js

64 ms

dataPost.min.js

dataPost.min.js

64 ms

bootstrap.min.js

bootstrap.min.js

58 ms

jquery.min.js

jquery.min.js

82 ms

translate-inline.min.js

translate-inline.min.js

62 ms

mage-translation-dictionary.min.js

mage-translation-dictionary.min.js

57 ms

responsive.min.js

responsive.min.js

56 ms

theme.min.js

theme.min.js

56 ms

form-mini.min.js

form-mini.min.js

57 ms

domReady.min.js

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57 ms

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57 ms

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56 ms

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57 ms

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62 ms

facebook.png

facebook.png

60 ms

badge_secure.png

badge_secure.png

60 ms

badge_quality_service.png

badge_quality_service.png

59 ms

template.min.js

template.min.js

25 ms

confirm.min.js

confirm.min.js

215 ms

widget.min.js

widget.min.js

216 ms

main.min.js

main.min.js

215 ms

bootstrap.min.js

bootstrap.min.js

216 ms

jquery.min.js

jquery.min.js

213 ms

translate.min.js

translate.min.js

211 ms

text.min.js

text.min.js

212 ms

tabs.min.js

tabs.min.js

211 ms

smart-keyboard-handler.min.js

smart-keyboard-handler.min.js

210 ms

mage.min.js

mage.min.js

210 ms

ie-class-fixer.min.js

ie-class-fixer.min.js

210 ms

dialog.min.js

dialog.min.js

204 ms

jquery-ui.min.js

jquery-ui.min.js

205 ms

matchMedia.min.js

matchMedia.min.js

205 ms

underscore.min.js

underscore.min.js

203 ms

registry.min.js

registry.min.js

204 ms

form-mini.min.js

form-mini.min.js

204 ms

cookies.min.js

cookies.min.js

203 ms

page-cache.min.js

page-cache.min.js

204 ms

slick.min.js

slick.min.js

204 ms

catalog-add-to-cart.min.js

catalog-add-to-cart.min.js

28 ms

catalog-add-to-cart-mixin.min.js

catalog-add-to-cart-mixin.min.js

28 ms

RobSon.woff

RobSon.woff

96 ms

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K0nXBi8JoA.woff

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K0nXBi8JoA.woff

97 ms

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K3vXBi8JoA.woff

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K3vXBi8JoA.woff

97 ms

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32KxfXBi8JoA.woff

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32KxfXBi8JoA.woff

211 ms

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K5fQBi8JoA.woff

QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K5fQBi8JoA.woff

254 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

255 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

254 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

254 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

255 ms

pxiByp8kv8JHgFVrLEj6Z1xlEw.woff

pxiByp8kv8JHgFVrLEj6Z1xlEw.woff

253 ms

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

256 ms

pxiEyp8kv8JHgFVrJJfedA.woff

pxiEyp8kv8JHgFVrJJfedA.woff

255 ms

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

255 ms

jquery-migrate.min.js

jquery-migrate.min.js

85 ms

owl.carousel.min.js

owl.carousel.min.js

85 ms

modal.min.js

modal.min.js

84 ms

knockout.min.js

knockout.min.js

200 ms

knockout-es5.min.js

knockout-es5.min.js

83 ms

core.min.js

core.min.js

189 ms

js-translation.json

js-translation.json

78 ms

button.min.js

button.min.js

193 ms

draggable.min.js

draggable.min.js

79 ms

position.min.js

position.min.js

190 ms

resizable.min.js

resizable.min.js

192 ms

es6-collections.min.js

es6-collections.min.js

189 ms

jquery.cookie.min.js

jquery.cookie.min.js

234 ms

console-logger.min.js

console-logger.min.js

232 ms

scripts.min.js

scripts.min.js

159 ms

engine.min.js

engine.min.js

160 ms

bootstrap.min.js

bootstrap.min.js

160 ms

observable_array.min.js

observable_array.min.js

158 ms

bound-nodes.min.js

bound-nodes.min.js

160 ms

collapsible.min.js

collapsible.min.js

161 ms

collapsible-mixin.min.js

collapsible-mixin.min.js

159 ms

product-info-resolver.min.js

product-info-resolver.min.js

147 ms

product-ids-resolver.min.js

product-ids-resolver.min.js

147 ms

product-info-resolver.min.js

product-info-resolver.min.js

148 ms

modal-popup.html

modal-popup.html

149 ms

modal-slide.html

modal-slide.html

148 ms

modal-custom.html

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146 ms

key-codes.min.js

key-codes.min.js

146 ms

mouse.min.js

mouse.min.js

57 ms

local.min.js

local.min.js

14 ms

knockout-repeat.min.js

knockout-repeat.min.js

44 ms

knockout-fast-foreach.min.js

knockout-fast-foreach.min.js

44 ms

product-info.min.js

product-info.min.js

43 ms

wrapper.min.js

wrapper.min.js

43 ms

events.min.js

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43 ms

jquery.storageapi.extended.min.js

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44 ms

product-ids.min.js

product-ids.min.js

43 ms

logger.min.js

logger.min.js

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entry-factory.min.js

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console-output-handler.min.js

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21 ms

formatter.min.js

formatter.min.js

21 ms

message-pool.min.js

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levels-pool.min.js

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logger-utils.min.js

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observable_source.min.js

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renderer.min.js

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resizable.min.js

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scope.min.js

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autoselect.min.js

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datepicker.min.js

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outer_click.min.js

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tooltip.min.js

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38 ms

jquery.storageapi.min.js

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28 ms

moment.min.js

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26 ms

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31 ms

class.min.js

class.min.js

29 ms

async.min.js

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30 ms

entry.min.js

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25 ms

slider.min.js

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25 ms

loader.min.js

loader.min.js

28 ms

calendar.min.js

calendar.min.js

25 ms

spectrum.min.js

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23 ms

tinycolor.min.js

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tooltip.html

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arrays.min.js

arrays.min.js

10 ms

compare.min.js

compare.min.js

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misc.min.js

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strings.min.js

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datepicker.min.js

datepicker.min.js

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timepicker.min.js

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bindings.min.js

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print.min.css

print.min.css

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MutationObserver.min.js

MutationObserver.min.js

14 ms

Accessibility Review

therobson.com accessibility score

83

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

therobson.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

therobson.com SEO score

92

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

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 Therobson.com 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 Therobson.com 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

therobson.com

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