Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

blogjava.net

BlogJava - 专注于Java技术

Page Load Speed

30.6 sec in total

First Response

14.8 sec

Resources Loaded

15.4 sec

Page Rendered

353 ms

blogjava.net screenshot

About Website

Click here to check amazing Blog Java content for China. Otherwise, check out these important facts you probably never knew about blogjava.net

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Key Findings

We analyzed Blogjava.net page load time and found that the first response time was 14.8 sec and then it took 15.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

blogjava.net performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

83/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value6,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

blogjava.net

14833 ms

common.css

1181 ms

style.css

2340 ms

logo.gif

2654 ms

rss.gif

1445 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 35% of them (9 requests) were addressed to the original Blogjava.net, 19% (5 requests) were made to Tpc.googlesyndication.com and 12% (3 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (14.8 sec) belongs to the original domain Blogjava.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 332.9 kB (64%)

Content Size

519.6 kB

After Optimization

186.7 kB

In fact, the total size of Blogjava.net main page is 519.6 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 333.5 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 109.4 kB

  • Original 147.8 kB
  • After minification 146.9 kB
  • After compression 38.5 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 109.4 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 117 B

  • Original 22.0 kB
  • After minification 21.9 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. Blog Java images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 210.5 kB

  • Original 333.5 kB
  • After minification 332.9 kB
  • After compression 123.0 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 210.5 kB or 63% of the original size.

CSS Optimization

-79%

Potential reduce by 12.9 kB

  • Original 16.2 kB
  • After minification 13.2 kB
  • After compression 3.3 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. Blogjava.net needs all CSS files to be minified and compressed as it can save up to 12.9 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (33%)

Requests Now

24

After Optimization

16

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blog Java. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

blogjava.net accessibility score

45

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

blogjava.net 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

blogjava.net SEO score

62

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blogjava.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Blogjava.net 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 Blog Java. 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: