# Odd links?

**URL:** <https://www.ruby-forum.com/t/odd-links/95969>\
**Category:** Radiant CMS\
**Created:** [June 21, 2006, 12:29pm UTC](https://www.ruby-forum.com/t/odd-links/95969 "2006-06-21T12:29:14Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![timperrett](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c5a1d2/32.png) [@timperrett](https://www.ruby-forum.com/u/timperrett)\
**Post date:** [June 21, 2006, 12:29pm UTC](https://www.ruby-forum.com/t/odd-links/95969/1 "2006-06-21T12:29:14Z")

</div>

Hi guys…

Was just wondering why when I look at the source in the browser things  
link  
image links have (e…g /images/view-site.png?114952392) all those  
numbers on  
the end? Its not a query string so I don¹t understand what there doing  
there!

Can anyone enlighten me?

Thanks

Tim

* * *

This e-mail has been scanned for all viruses by Star. The  
service is powered by MessageLabs. For more information on a proactive  
anti-virus service working around the clock, around the globe, visit:  
[http://www.star.net.uk](http://www.star.net.uk)

---

<div class="post-metadata">

**Author:** ![timperrett](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c5a1d2/32.png) [@timperrett](https://www.ruby-forum.com/u/timperrett)\
**Post date:** [June 21, 2006, 1:15pm UTC](https://www.ruby-forum.com/t/odd-links/95969/2 "2006-06-21T13:15:14Z")

</div>

Tim P. wrote:

> Was just wondering why when I look at the source in the browser things link  
> image links have (e…g /images/view-site.png?114952392) all those numbers on  
> the end? Its not a query string so I don¹t understand what there doing  
> there!

Those are meant aid browser’s cache. Whenever you’ll change the image  
file, a new timestamp will used to generate the links, and the browser  
will know that file should be re-requested, instead of using the cached  
version.

Dee