Tools & Wizards About Us
jacobs-online.biz screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

jacobs-online.biz

Products for Industry, Laboratories and Hobbies

Page Load Speed

1.3 sec in total

First Response

336 ms

Resources Loaded

731 ms

Page Rendered

209 ms

jacobs-online.biz screenshot

About Website

Welcome to jacobs-online.biz homepage info - get ready to check Jacobs Online best content for India right away, or after learning these important things about jacobs-online.biz

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Key Findings

We analyzed Jacobs-online.biz page load time and found that the first response time was 336 ms and then it took 940 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

jacobs-online.biz performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

jacobs-online.biz

336 ms

horizontal_solution_PPeCheck.gif

184 ms

top_grad.jpg

98 ms

l_corner.jpg

194 ms

r_corner.jpg

198 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original Jacobs-online.biz, 15% (2 requests) were made to Paypal.com. The less responsive or slowest element that took the longest time to load (396 ms) belongs to the original domain Jacobs-online.biz.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.7 kB (20%)

Content Size

85.0 kB

After Optimization

68.3 kB

  • HTML
  • Images

In fact, the total size of Jacobs-online.biz main page is 85.0 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. 15% of websites need less resources to load. Images take 69.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 12.2 kB

  • Original 15.2 kB
  • After minification 12.2 kB
  • After compression 2.9 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 2.9 kB, which is 19% 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 12.2 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 4.5 kB

  • Original 69.9 kB
  • After minification 65.4 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. Jacobs Online images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jacobs Online. According to our analytics all requests are already optimized.

Network Requests Diagram

jacobs-online.biz

jacobs-online.biz

336 ms

horizontal_solution_PPeCheck.gif

horizontal_solution_PPeCheck.gif

184 ms

top_grad.jpg

top_grad.jpg

98 ms

l_corner.jpg

l_corner.jpg

194 ms

r_corner.jpg

r_corner.jpg

198 ms

wirehome2.jpg

wirehome2.jpg

198 ms

transformer_sizes_2.jpg

transformer_sizes_2.jpg

184 ms

dimmer_sm.jpg

dimmer_sm.jpg

190 ms

elec-hrdwr2.jpg

elec-hrdwr2.jpg

187 ms

tubular_nylon_both.JPG

tubular_nylon_both.JPG

388 ms

vial_sm.jpg

vial_sm.jpg

393 ms

clouds02.gif

clouds02.gif

396 ms

view_cart_new.gif

view_cart_new.gif

211 ms

Accessibility Review

jacobs-online.biz accessibility score

64

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

jacobs-online.biz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

jacobs-online.biz SEO score

50

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jacobs-online.biz 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 Jacobs-online.biz main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

jacobs-online.biz

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