Website review sqlzoo.net
SQLZoo
Generated on March 09 2026 21:20 PM
Old data? UPDATE !
The score is 34/100
SEO Content
Title
SQLZoo
Length : 6
Ideally, your title should contain between 10 and 70 characters (spaces included). Use this free tool to calculate text length.
Description
Length : 0
Very bad. We haven't found meta description on your page. Use this free online meta tags generator to create description.
Keywords
Very bad. We haven't found meta keywords on your page. Use this free online meta tags generator to create keywords.
Og Meta Properties
This page does not take advantage of Og Properties. This tags allows social crawler's better structurize your page. Use this free og properties generator to create them.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 10 | 12 | 0 | 0 | 0 |
- [H1] SQL Tutorial
- [H2] Anonymous
- [H2] Tutorials: Learn SQL step by step
- [H2] Reference: how to...
- [H2] Assessments: More involved examples for confident users
- [H2] Challenges
- [H2] SQL Resources
- [H2] Navigation
- [H2] Wiki tools
- [H2] Page tools
- [H2] Categories
- [H3] Not logged in
- [H3] Search
- [H3] Namespaces
- [H3] More
- [H3] Page actions
- [H3]
- [H3] Reference
- [H3] Wiki tools
- [H3] Page tools
- [H3] User page tools
- [H3] More
- [H3] Categories
Images
We found 3 images on this web page.
1 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 0%
This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Great, there are no Iframes detected on this page.
SEO Links
URL Rewrite
Bad. Your links have query string.
Underscores in the URLs
We have detected underscores in your URLs. You should rather use hyphens to optimize your SEO.
In-page links
We found a total of 74 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| SQLZoo | Internal | Passing Juice |
| Language: | Internal | Passing Juice |
| Project:Language policy | Internal | Passing Juice |
| 日本語 | Internal | Passing Juice |
| 中文 | Internal | Passing Juice |
| 0 SELECT basics | Internal | Passing Juice |
| 1 SELECT name | Internal | Passing Juice |
| 2 SELECT from World | Internal | Passing Juice |
| 3 SELECT from Nobel | Internal | Passing Juice |
| 4 SELECT within SELECT | Internal | Passing Juice |
| 5 SUM and COUNT | Internal | Passing Juice |
| more the same | Internal | Passing Juice |
| 6 JOIN | Internal | Passing Juice |
| previously music tutorial | Internal | Passing Juice |
| 7 More JOIN operations | Internal | Passing Juice |
| 8 Using Null | Internal | Passing Juice |
| previously Scottish Parliament | Internal | Passing Juice |
| 8+ Numeric Examples | Internal | Passing Juice |
| 9- Window function | Internal | Passing Juice |
| 9+ COVID 19 | Internal | Passing Juice |
| 9 Self join | Internal | Passing Juice |
| 10 Tutorial Quizzes | Internal | Passing Juice |
| 11 Tutorial Student Records | Internal | Passing Juice |
| 12 Tutorial DDL | Internal | Passing Juice |
| SELECT | Internal | Passing Juice |
| CREATE and DROP | Internal | Passing Juice |
| INSERT and DELETE | Internal | Passing Juice |
| DATE and TIME | Internal | Passing Juice |
| Functions | Internal | Passing Juice |
| Users | Internal | Passing Juice |
| Meta Data | Internal | Passing Juice |
| SQL Hacks | Internal | Passing Juice |
| Using SQL with PHP on Amazon EC2 servers | Internal | Passing Juice |
| INF08104 | Internal | Passing Juice |
| An introduction to transactions | Internal | Passing Juice |
| Using SQL with C# | Internal | Passing Juice |
| Module Feedback | Internal | Passing Juice |
| Help Desk | Internal | Passing Juice |
| Guest House | Internal | Passing Juice |
| Adventure Works | Internal | Passing Juice |
| University Timetables | Internal | Passing Juice |
| Musicians | Internal | Passing Juice |
| Dressmaker | Internal | Passing Juice |
| Congestion Charging | Internal | Passing Juice |
| White Christmas | Internal | Passing Juice |
| NoSQL Mongo | Internal | noFollow |
| Select Basics - Answers | Internal | noFollow |
| Select from World - Answers | Internal | noFollow |
| Mimer | External | noFollow |
| MySQL | External | noFollow |
| Oracle | External | noFollow |
| SQL Server | External | noFollow |
| Access | External | noFollow |
| DB2 | External | noFollow |
| Sybase | External | noFollow |
| Postgres | External | noFollow |
| SQLite | External | noFollow |
| MySQL | Internal | Passing Juice |
| Oracle | Internal | Passing Juice |
| SQL Server | Internal | Passing Juice |
| DB2 | Internal | Passing Juice |
| Postgres | Internal | Passing Juice |
| Ingres | Internal | Passing Juice |
| SQL in perl on the Web | Internal | Passing Juice |
| SQL from Java | Internal | Passing Juice |
| Some error messages from SQL engines | Internal | Passing Juice |
| Assessment Temp | Internal | Passing Juice |
| To do list | Internal | Passing Juice |
| https://sqlzoo.net/w/index.php?title=SQL_Tutorial&oldid=40218 | Internal | Passing Juice |
| Category | Internal | Passing Juice |
| Languages pages | Internal | Passing Juice |
| Privacy policy | Internal | Passing Juice |
| About SQLZoo | Internal | Passing Juice |
| Disclaimers | Internal | Passing Juice |
SEO Keywords
Keywords Cloud
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|
Usability
Url
Domain : sqlzoo.net
Length : 10
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is en.
Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Great no email address has been found in plain text!
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
 |
Excellent, your website doesn't use nested tables. |
 |
Too bad, your website is using inline styles. |
|
Great, your website has few CSS files. |
|
Perfect, your website has few JavaScript files. |
|
Too bad, your website does not take advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
|
Flash content |
Optimization
XML Sitemap
Missing
Your website does not have an XML sitemap - this can be problematic.
A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.
Robots.txt
https://sqlzoo.net/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
We didn't detect an analytics tool installed on this website.
Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
PageSpeed Insights
Device
Categories
Free SEO Testing Tool
Free SEO Testing Tool is a free SEO tool which provides you content analysis of the website.