robots.txt Rerouting on Development Servers

By  on  

Every website should have a robots.txt file.  Some bots hit sites so often that they slow down performance, other bots simply aren't desirable.  robots.txt files can also be used to communicate sitemap location and limit request rate.  It's important that the correct robots.txt file is served on development servers though, and that file is usually much different than your production robots.txt file.  Here's a quick .htaccess snippet you can use to make that happen:

RewriteCond %{HTTP_HOST} devdomain
RewriteRule ^robots.txt$ robots-go-away.txt [L]

The robots-go-away.txt file most likely directs robots not to index anything, unless you want your dev server to be indexed for some reason (hint:  you really don't want this).

Recent Features

  • By
    Create Namespaced Classes with MooTools

    MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does.  Many developers create their classes as globals which is generally frowned up.  I mostly disagree with that stance, but each to their own.  In any event...

  • By
    CSS Gradients

    With CSS border-radius, I showed you how CSS can bridge the gap between design and development by adding rounded corners to elements.  CSS gradients are another step in that direction.  Now that CSS gradients are supported in Internet Explorer 8+, Firefox, Safari, and Chrome...

Incredible Demos

  • By
    Flexbox Equal Height Columns

    Flexbox was supposed to be the pot of gold at the long, long rainbow of insufficient CSS layout techniques.  And the only disappointment I've experienced with flexbox is that browser vendors took so long to implement it.  I can't also claim to have pushed flexbox's limits, but...

  • By
    CSS Text Overlap

    One of the important functions of CSS is to position elements. Margin, padding, top, left, right, bottom, position, and z-index are just a few of the major players in CSS positioning. By using the above spacing...

Discussion

  1. Here’s an example showing how to include multiple development domains:

    RewriteCond %{HTTP_HOST} ^localhost [OR]
    RewriteCond %{HTTP_HOST} ^example.dev [OR]
    RewriteCond %{HTTP_HOST} ^test.example.com [OR]
    RewriteCond %{HTTP_HOST} ^staging.example.com
    RewriteRule ^robots.txt$ robots-disallow.txt [L]
    
  2. Steve

    use vagrant

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!