Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

diveintohtml5.info

Dive Into HTML5

Page Load Speed

1.3 sec in total

First Response

479 ms

Resources Loaded

624 ms

Page Rendered

167 ms

diveintohtml5.info screenshot

About Website

Welcome to diveintohtml5.info homepage info - get ready to check Dive Into HTML5 best content for India right away, or after learning these important things about diveintohtml5.info

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Key Findings

We analyzed Diveintohtml5.info page load time and found that the first response time was 479 ms and then it took 791 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

diveintohtml5.info performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

diveintohtml5.info

479 ms

screen.css

4 ms

jquery.js

17 ms

dih5.js

15 ms

Libertine.woff

54 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 87% of them (13 requests) were addressed to the original Diveintohtml5.info, 13% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (479 ms) belongs to the original domain Diveintohtml5.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 170.4 kB (76%)

Content Size

224.3 kB

After Optimization

53.9 kB

In fact, the total size of Diveintohtml5.info main page is 224.3 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. 30% of websites need less resources to load. Javascripts take 202.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 5.6 kB

  • Original 8.2 kB
  • After minification 8.1 kB
  • After compression 2.6 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 5.6 kB or 68% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 95 B
  • After minification 95 B

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. Dive Into HTML5 images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 153.5 kB

  • Original 202.3 kB
  • After minification 127.9 kB
  • After compression 48.8 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 153.5 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 11.3 kB

  • Original 13.7 kB
  • After minification 6.9 kB
  • After compression 2.4 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. Diveintohtml5.info needs all CSS files to be minified and compressed as it can save up to 11.3 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dive Into HTML5. According to our analytics all requests are already optimized.

Accessibility Review

diveintohtml5.info accessibility score

91

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

diveintohtml5.info best practices score

83

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

SEO Factors

diveintohtml5.info SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Diveintohtml5.info 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 Diveintohtml5.info 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 Dive Into HTML5. 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: