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jdbc-tutorial.com screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jdbc-tutorial.com

Java JDBC Tutorial | JDBC Examples | Learn JDBC | Tutorials & Examples for using Java, databases, JDBC | Wideskills

Page Load Speed

2.6 sec in total

First Response

149 ms

Resources Loaded

2.2 sec

Page Rendered

311 ms

jdbc-tutorial.com screenshot

About Website

Click here to check amazing JDBC Tutorial content for India. Otherwise, check out these important facts you probably never knew about jdbc-tutorial.com

jdbc tutorial teaching jdbc programming using java jdbc odbc connectivity on a oracle database with example source codes.

Visit jdbc-tutorial.com

Key Findings

We analyzed Jdbc-tutorial.com page load time and found that the first response time was 149 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

jdbc-tutorial.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value780 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

jdbc-tutorial.com

149 ms

introduction-to-jdbc

1179 ms

system.base.css

40 ms

system.menus.theme.css

41 ms

system.messages.theme.css

43 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Jdbc-tutorial.com, 84% (63 requests) were made to Wideskills.com and 4% (3 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Wideskills.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 554.7 kB (52%)

Content Size

1.1 MB

After Optimization

516.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jdbc-tutorial.com main page is 1.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Javascripts take 673.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 53.6 kB

  • Original 66.6 kB
  • After minification 66.6 kB
  • After compression 13.0 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 53.6 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 1.8 kB

  • Original 16.9 kB
  • After minification 15.1 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. Obviously, JDBC Tutorial needs image optimization as it can save up to 1.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-36%

Potential reduce by 240.4 kB

  • Original 673.4 kB
  • After minification 637.4 kB
  • After compression 433.0 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 240.4 kB or 36% of the original size.

CSS Optimization

-82%

Potential reduce by 258.9 kB

  • Original 314.3 kB
  • After minification 291.8 kB
  • After compression 55.4 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. Jdbc-tutorial.com needs all CSS files to be minified and compressed as it can save up to 258.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (90%)

Requests Now

72

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JDBC Tutorial. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jdbc-tutorial.com

jdbc-tutorial.com

149 ms

introduction-to-jdbc

introduction-to-jdbc

1179 ms

system.base.css

system.base.css

40 ms

system.menus.theme.css

system.menus.theme.css

41 ms

system.messages.theme.css

system.messages.theme.css

43 ms

system.theme.css

system.theme.css

44 ms

field.theme.css

field.theme.css

44 ms

node.css

node.css

58 ms

core.css

core.css

61 ms

quiz.css

quiz.css

57 ms

search.theme.css

search.theme.css

64 ms

user.theme.css

user.theme.css

64 ms

user.base.css

user.base.css

65 ms

views.css

views.css

76 ms

jquery.ui.core.min.css

jquery.ui.core.min.css

76 ms

jquery.ui.theme.min.css

jquery.ui.theme.min.css

81 ms

jquery.ui.button.min.css

jquery.ui.button.min.css

85 ms

jquery.ui.resizable.min.css

jquery.ui.resizable.min.css

86 ms

jquery.ui.dialog.min.css

jquery.ui.dialog.min.css

86 ms

colorbox_style.css

colorbox_style.css

93 ms

ctools.css

ctools.css

94 ms

panels.css

panels.css

102 ms

semantic.min.css

semantic.min.css

190 ms

shCore.css

shCore.css

107 ms

shThemeMidnight.css

shThemeMidnight.css

106 ms

syntaxhighlighter_insert_wysiwyg.css

syntaxhighlighter_insert_wysiwyg.css

112 ms

twocol_stacked.css

twocol_stacked.css

113 ms

semantic-ui-omega.normalize.css

semantic-ui-omega.normalize.css

123 ms

semantic-ui-omega.hacks.css

semantic-ui-omega.hacks.css

127 ms

semantic-ui-omega.styles.css

semantic-ui-omega.styles.css

149 ms

semantic.custom.css

semantic.custom.css

130 ms

semantic-ui.layout.css

semantic-ui.layout.css

132 ms

jquery.min.js

jquery.min.js

8 ms

jquery.once.js

jquery.once.js

144 ms

drupal.js

drupal.js

168 ms

no-js.js

no-js.js

149 ms

jquery-ui.min.js

jquery-ui.min.js

14 ms

syntaxhighlighter_insert.utils.js

syntaxhighlighter_insert.utils.js

150 ms

syntaxhighlighter_insert.js

syntaxhighlighter_insert.js

165 ms

show_ads.js

show_ads.js

70 ms

shCore.js

shCore.js

136 ms

shBrushAS3.js

shBrushAS3.js

134 ms

shBrushCSharp.js

shBrushCSharp.js

136 ms

shBrushColdFusion.js

shBrushColdFusion.js

150 ms

shBrushCss.js

shBrushCss.js

194 ms

shBrushDiff.js

shBrushDiff.js

148 ms

shBrushJScript.js

shBrushJScript.js

182 ms

shBrushJava.js

shBrushJava.js

180 ms

shBrushPerl.js

shBrushPerl.js

179 ms

shBrushPhp.js

shBrushPhp.js

177 ms

shBrushPlain.js

shBrushPlain.js

174 ms

shBrushPython.js

shBrushPython.js

177 ms

shBrushRuby.js

shBrushRuby.js

164 ms

shBrushSql.js

shBrushSql.js

165 ms

shBrushXml.js

shBrushXml.js

161 ms

nws-script.js

nws-script.js

158 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

156 ms

colorbox.js

colorbox.js

158 ms

colorbox_style.js

colorbox_style.js

150 ms

semantic.min.js

semantic.min.js

185 ms

googleanalytics.js

googleanalytics.js

146 ms

semantic-ui-omega.behaviors.js

semantic-ui-omega.behaviors.js

144 ms

syntaxhighlighter.min.js

syntaxhighlighter.min.js

147 ms

analytics.js

analytics.js

64 ms

WideSkills%20logo.jpg

WideSkills%20logo.jpg

45 ms

JDBC%20Architecture.jpg

JDBC%20Architecture.jpg

45 ms

adsbygoogle.js

adsbygoogle.js

161 ms

icons.svg

icons.svg

133 ms

sdk.js

sdk.js

67 ms

collect

collect

14 ms

sdk.js

sdk.js

6 ms

js

js

76 ms

46 ms

icons.woff

icons.woff

100 ms

show_ads_impl.js

show_ads_impl.js

250 ms

Accessibility Review

jdbc-tutorial.com accessibility score

95

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

jdbc-tutorial.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

jdbc-tutorial.com SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Jdbc-tutorial.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 Jdbc-tutorial.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

jdbc-tutorial.com

Open Graph description is not detected on the main page of JDBC Tutorial. 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: