Tools & Wizards About Us
sql-ex.com screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

sql-ex.com

SQL exercises

Page Load Speed

5.7 sec in total

First Response

1.2 sec

Resources Loaded

4.3 sec

Page Rendered

185 ms

sql-ex.com screenshot

About Website

Click here to check amazing SQL Ex content for India. Otherwise, check out these important facts you probably never knew about sql-ex.com

SQL remote education. Interactive exercises on SQL statements: SELECT,INSERT,UPDATE,DELETE

Visit sql-ex.com

Key Findings

We analyzed Sql-ex.com page load time and found that the first response time was 1.2 sec and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

sql-ex.com performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value1,120 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.471

18/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

Network Requests Diagram

sql-ex.com

1177 ms

letter.css

372 ms

hint.css

373 ms

style.css

539 ms

main.js

541 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 13% of them (9 requests) were addressed to the original Sql-ex.com, 16% (11 requests) were made to W.uptolike.com and 6% (4 requests) were made to Cm.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Sql-ex.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 200.8 kB (76%)

Content Size

264.1 kB

After Optimization

63.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sql-ex.com main page is 264.1 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. 20% of websites need less resources to load. HTML takes 162.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 136.6 kB

  • Original 162.7 kB
  • After minification 161.0 kB
  • After compression 26.1 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 136.6 kB or 84% of the original size.

Image Optimization

-11%

Potential reduce by 227 B

  • Original 2.1 kB
  • After minification 1.8 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, SQL Ex needs image optimization as it can save up to 227 B 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

-63%

Potential reduce by 58.7 kB

  • Original 92.5 kB
  • After minification 90.9 kB
  • After compression 33.8 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 58.7 kB or 63% of the original size.

CSS Optimization

-78%

Potential reduce by 5.3 kB

  • Original 6.8 kB
  • After minification 5.6 kB
  • After compression 1.5 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. Sql-ex.com needs all CSS files to be minified and compressed as it can save up to 5.3 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (66%)

Requests Now

44

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SQL Ex. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sql-ex.com

sql-ex.com

1177 ms

letter.css

letter.css

372 ms

hint.css

hint.css

373 ms

style.css

style.css

539 ms

main.js

main.js

541 ms

zp.js

zp.js

806 ms

top100.jcn

top100.jcn

527 ms

bn.php

bn.php

355 ms

bn.php

bn.php

409 ms

banner-88x31-rambler-gray2.gif

banner-88x31-rambler-gray2.gif

380 ms

blueup.gif

blueup.gif

186 ms

premia-nom-100x50.gif

premia-nom-100x50.gif

185 ms

new_on_sqlex_maroon.gif

new_on_sqlex_maroon.gif

185 ms

ourbook.jpg

ourbook.jpg

179 ms

top100.scn

top100.scn

250 ms

cnt

cnt

944 ms

hit

hit

265 ms

uptolike.js

uptolike.js

458 ms

watch.js

watch.js

169 ms

hit

hit

134 ms

uid.php

uid.php

224 ms

fpx.php

fpx.php

499 ms

tk.php

tk.php

306 ms

495 ms

463 ms

impression.html

impression.html

277 ms

sync

sync

274 ms

extra.js

extra.js

307 ms

watch.js

watch.js

573 ms

version.js

version.js

192 ms

pixel

pixel

18 ms

418 ms

pixel

pixel

14 ms

widgetsModule.js

widgetsModule.js

793 ms

advmaker

advmaker

441 ms

rsc.php

rsc.php

580 ms

advmaker

advmaker

202 ms

match

match

92 ms

u4180.30.spylog.com

u4180.30.spylog.com

252 ms

advert.gif

advert.gif

95 ms

advmaker

advmaker

104 ms

1

1

91 ms

cnt

cnt

243 ms

support.html

support.html

211 ms

renegade-smart

renegade-smart

213 ms

pixel

pixel

12 ms

audtd.png

audtd.png

680 ms

sync

sync

251 ms

sync

sync

425 ms

556d807310823b694772f699.js

556d807310823b694772f699.js

209 ms

share-counter.html

share-counter.html

173 ms

pixel

pixel

37 ms

renegade-smart

renegade-smart

117 ms

icomoon.svg

icomoon.svg

305 ms

icomoon.woff

icomoon.woff

156 ms

sync

sync

146 ms

121 ms

widgets-batch.js

widgets-batch.js

163 ms

admitad

admitad

243 ms

set

set

146 ms

dispatch.fcgi

dispatch.fcgi

172 ms

pixel.gif

pixel.gif

104 ms

sync

sync

139 ms

fql.query

fql.query

134 ms

fql.query

fql.query

191 ms

count.json

count.json

74 ms

count.json

count.json

116 ms

Accessibility Review

sql-ex.com accessibility score

69

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

sql-ex.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

sql-ex.com SEO score

88

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

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

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sql-ex.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 Sql-ex.com main page’s claimed encoding is windows-1251. 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

sql-ex.com

Open Graph description is not detected on the main page of SQL Ex. 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: