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schemacentral.com screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

schemacentral.com

Schema Central

Page Load Speed

1.1 sec in total

First Response

237 ms

Resources Loaded

822 ms

Page Rendered

69 ms

schemacentral.com screenshot

About Website

Visit schemacentral.com now to see the best up-to-date Schema Central content and also check out these interesting facts you probably never knew about schemacentral.com

Schema Central

Visit schemacentral.com

Key Findings

We analyzed Schemacentral.com page load time and found that the first response time was 237 ms and then it took 891 ms 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

schemacentral.com performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

64/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

schemacentral.com

237 ms

www.schemacentral.com

212 ms

bootstrap.min.css

341 ms

xmlspectrum.css

156 ms

datypic-resp.css

158 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that 22% of them (2 requests) were addressed to the original Schemacentral.com, 78% (7 requests) were made to Datypic.com. The less responsive or slowest element that took the longest time to load (355 ms) relates to the external source Datypic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 231.4 kB (76%)

Content Size

302.5 kB

After Optimization

71.1 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Schemacentral.com main page is 302.5 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. CSS take 149.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 9.8 kB

  • Original 11.9 kB
  • After minification 8.8 kB
  • After compression 2.2 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 3.2 kB, which is 27% 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 9.8 kB or 82% of the original size.

JavaScript Optimization

-68%

Potential reduce by 95.6 kB

  • Original 141.0 kB
  • After minification 141.0 kB
  • After compression 45.4 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 95.6 kB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 126.0 kB

  • Original 149.6 kB
  • After minification 148.3 kB
  • After compression 23.5 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. Schemacentral.com needs all CSS files to be minified and compressed as it can save up to 126.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (43%)

Requests Now

7

After Optimization

4

  • JavaScript
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schema Central. 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 CSS and as a result speed up the page load time.

Network Requests Diagram

schemacentral.com

schemacentral.com

237 ms

www.schemacentral.com

www.schemacentral.com

212 ms

bootstrap.min.css

bootstrap.min.css

341 ms

xmlspectrum.css

xmlspectrum.css

156 ms

datypic-resp.css

datypic-resp.css

158 ms

sc-legacy.css

sc-legacy.css

160 ms

jquery-3.3.1.slim.min.js

jquery-3.3.1.slim.min.js

321 ms

popper.min.js

popper.min.js

275 ms

bootstrap.min.js

bootstrap.min.js

355 ms

Accessibility Review

schemacentral.com accessibility score

95

Accessibility Issues

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

Best Practices

schemacentral.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

schemacentral.com SEO score

93

Search Engine Optimization Advices

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 Schemacentral.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 Schemacentral.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

schemacentral.com

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