Tools & Wizards About Us
substituteonline.com screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

substituteonline.com

Substitute Online 130

Page Load Speed

1.4 sec in total

First Response

416 ms

Resources Loaded

873 ms

Page Rendered

152 ms

substituteonline.com screenshot

About Website

Visit substituteonline.com now to see the best up-to-date Substitute Online content for United States and also check out these interesting facts you probably never knew about substituteonline.com

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Key Findings

We analyzed Substituteonline.com page load time and found that the first response time was 416 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

substituteonline.com performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

substituteonline.com

416 ms

setup.css

168 ms

layout.css

169 ms

home.css

169 ms

navigation.js

167 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Substituteonline.com and no external sources were called. The less responsive or slowest element that took the longest time to load (433 ms) belongs to the original domain Substituteonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.2 kB (33%)

Content Size

51.4 kB

After Optimization

34.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Substituteonline.com main page is 51.4 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 5% of websites need less resources to load. Images take 31.6 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 9.8 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 5.4 kB, which is 36% 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

-5%

Potential reduce by 1.6 kB

  • Original 31.6 kB
  • After minification 30.1 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. Substitute Online images are well optimized though.

CSS Optimization

-75%

Potential reduce by 3.4 kB

  • Original 4.5 kB
  • After minification 3.3 kB
  • After compression 1.1 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. Substituteonline.com needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (40%)

Requests Now

20

After Optimization

12

  • Images
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Substitute Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

substituteonline.com

substituteonline.com

416 ms

setup.css

setup.css

168 ms

layout.css

layout.css

169 ms

home.css

home.css

169 ms

navigation.js

navigation.js

167 ms

login.js

login.js

178 ms

bannerbg3.gif

bannerbg3.gif

87 ms

mimic_title.gif

mimic_title.gif

168 ms

home_down.gif

home_down.gif

84 ms

about_up.gif

about_up.gif

88 ms

faq_up.gif

faq_up.gif

88 ms

demo_up.gif

demo_up.gif

88 ms

articles_up.gif

articles_up.gif

166 ms

references_up.gif

references_up.gif

169 ms

contact_up.gif

contact_up.gif

172 ms

home_topleft4.gif

home_topleft4.gif

173 ms

login.gif

login.gif

259 ms

questionmark.gif

questionmark.gif

249 ms

home_topright3.gif

home_topright3.gif

257 ms

banner.gif

banner.gif

346 ms

home_bottomleft2.gif

home_bottomleft2.gif

259 ms

notice.png

notice.png

433 ms

home_bottomright2.gif

home_bottomright2.gif

331 ms

Accessibility Review

substituteonline.com accessibility score

43

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

Form elements do not have associated labels

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

substituteonline.com best practices score

75

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

Serves images with low resolution

SEO Factors

substituteonline.com SEO score

58

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Substituteonline.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Substituteonline.com main page’s claimed encoding is iso-8859-1. 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

substituteonline.com

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