Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

thorlabs.co.jp

Thorlabs:ソーラボジャパン株式会社

Page Load Speed

3.7 sec in total

First Response

1.2 sec

Resources Loaded

2.4 sec

Page Rendered

124 ms

thorlabs.co.jp screenshot

About Website

Welcome to thorlabs.co.jp homepage info - get ready to check Thorlabs best content for Japan right away, or after learning these important things about thorlabs.co.jp

ソーラボ社製品カタログ公式サイト - 光を使う技術に欠かせない豊富な光学製品をラインナップ。製品図面や納期・定価も掲載しており、ウェブからお見積り・ご注文も承ります。多くの製品は最短で翌日納品が可能です。

Visit thorlabs.co.jp

Key Findings

We analyzed Thorlabs.co.jp page load time and found that the first response time was 1.2 sec and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

thorlabs.co.jp performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.469

18/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

thorlabs.co.jp

1220 ms

bootstrap.min.css

731 ms

HomePage_min.css

537 ms

Thorlabs_Logo_Red.png

559 ms

JPTOP_peeking.png

166 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 64% of them (9 requests) were addressed to the original Thorlabs.co.jp, 14% (2 requests) were made to Google-analytics.com and 7% (1 request) were made to Server.iad.liveperson.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Thorlabs.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 356.0 kB (63%)

Content Size

561.8 kB

After Optimization

205.8 kB

In fact, the total size of Thorlabs.co.jp main page is 561.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Javascripts take 392.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 16.4 kB

  • Original 21.2 kB
  • After minification 21.2 kB
  • After compression 4.8 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 16.4 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 1.2 kB

  • Original 60.4 kB
  • After minification 59.2 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. Thorlabs images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 267.6 kB

  • Original 392.9 kB
  • After minification 392.9 kB
  • After compression 125.3 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 267.6 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 70.9 kB

  • Original 87.3 kB
  • After minification 84.2 kB
  • After compression 16.5 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. Thorlabs.co.jp needs all CSS files to be minified and compressed as it can save up to 70.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (27%)

Requests Now

11

After Optimization

8

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Thorlabs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

thorlabs.co.jp accessibility score

91

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

thorlabs.co.jp best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

thorlabs.co.jp SEO score

92

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

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thorlabs.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Thorlabs.co.jp 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

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