Comments on: How URL shortening scripts work?

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By: Desert69

Desert69 — Tue, 22 Jun 2010 13:25:33 +0000

As the baseXX url is generated by converting the link ID (and not its URL), the only benefit you’ll have is, as you said, the DB storage size.

But it will mean more process needed (two DB queries instead of one), and some issues if, for example, url 10099 changes.

By: Dennison Uy

Dennison Uy — Fri, 23 Apr 2010 03:49:43 +0000

Is there any benefit to adding backward references to URLs which contain exactly the same string?

i.e.

———————————————–
ID URL
———————————————–
10099 http://corpocrat.com/
14566 http://corpocrat.com/blah/page.htm

could become:

———————————————–
ID URL
———————————————–
10099 http://corpocrat.com/
14566 10099/blah/page.htm

A translation function would then replace all URLs not beginning with http:// with the URL of the referenced ID.

This can be further improved for speed by creating a separate field for the base URL.

Such a technique might improve storage, but I wonder there is a way it can be used to make the URLs shorter as well?

By: Wesam Alalem

Wesam Alalem — Tue, 16 Mar 2010 14:55:09 +0000

Thanks a lot, I just started reading about URL shortening and this was a wonderful start.
Keep up the good work.

By: Keyur Patel

Keyur Patel — Mon, 22 Feb 2010 06:41:07 +0000

nice article, thanks

By: srisoftwarez

srisoftwarez — Fri, 20 Nov 2009 07:03:34 +0000

nice post.. thanks for sharing base36 encoding for url shorting…

By: Oliver Ruehl

Oliver Ruehl — Tue, 10 Nov 2009 10:59:25 +0000

Thanks a lot!
This will help me in developing my scripts further and expand my business.

Oliver

By: Abhinav Singh

Abhinav Singh — Fri, 16 Oct 2009 08:22:18 +0000

Nice article. Though you should also consider base64 method as described by Steve or checkout how wordpress generate such random passwords, same method can be used as generate url shorter.

Check this article “How to generate random password like WordPress using PHP? ” http://tinyurl.com/kuupv5.

-Abhinav

By: avanzaweb

avanzaweb — Thu, 15 Oct 2009 08:55:32 +0000

Nice article. I am thinking about develop an url shortening page for my website and this article is very useful.

By: Steve Robillard

Steve Robillard — Fri, 02 Oct 2009 06:13:37 +0000

you can actually improve on this by using a URL safe base 64 conversion. this utilizes the uppercase Letters and
+’ and ‘/’ characters of standard Base64 are respectively replaced by ‘-’ and ‘_’. because of the extra 28 characters used. you can generate far more short URLS for the same number of digits in the ID. I actually have a very early version of this working on Google App Engine at minrlz.com.