Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

jb-hyperspectral.com

JB Hyperspectral - hyperspectral systems for environmental research

Page Load Speed

5 sec in total

First Response

369 ms

Resources Loaded

4.2 sec

Page Rendered

458 ms

jb-hyperspectral.com screenshot

About Website

Welcome to jb-hyperspectral.com homepage info - get ready to check JB Hyperspectral best content right away, or after learning these important things about jb-hyperspectral.com

The company is devoted to the reliable, accurate and long term measure of sun induced fluorescence and provides this technique to researchers.

Visit jb-hyperspectral.com

Key Findings

We analyzed Jb-hyperspectral.com page load time and found that the first response time was 369 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jb-hyperspectral.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.134

80/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

jb-hyperspectral.com

369 ms

www.jb-hyperspectral.com

1062 ms

style.min.css

445 ms

styles.css

337 ms

style.min.css

450 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 59% of them (26 requests) were addressed to the original Jb-hyperspectral.com, 14% (6 requests) were made to Use.typekit.net and 7% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Jb-hyperspectral.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 513.4 kB (19%)

Content Size

2.7 MB

After Optimization

2.2 MB

In fact, the total size of Jb-hyperspectral.com main page is 2.7 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. 40% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 68.5 kB

  • Original 84.6 kB
  • After minification 81.6 kB
  • After compression 16.1 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 68.5 kB or 81% of the original size.

Image Optimization

-20%

Potential reduce by 444.4 kB

  • Original 2.2 MB
  • After minification 1.8 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. Obviously, JB Hyperspectral needs image optimization as it can save up to 444.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 245 B

  • Original 361.4 kB
  • After minification 361.4 kB
  • After compression 361.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 246 B

  • Original 38.3 kB
  • After minification 38.3 kB
  • After compression 38.1 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. Jb-hyperspectral.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 25 (68%)

Requests Now

37

After Optimization

12

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JB Hyperspectral. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jb-hyperspectral.com accessibility score

89

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

jb-hyperspectral.com best practices score

67

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

Browser errors were logged to the console

SEO Factors

jb-hyperspectral.com SEO score

77

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

High

Image elements do not have [alt] attributes

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 Jb-hyperspectral.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 Jb-hyperspectral.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

Open Graph data is detected on the main page of JB Hyperspectral. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: