Check your server result codes / show HTTP server headers

General Tools

Duplicate Content Analysis

Check your pages for in-site duplicate content on a block level with a shingle-analysis.

To WWW or not? Domain check

Check your domain to determine the optimal domain name, 301's and canonicals.

Check 'IfModifiedSince' handling

Check to make sure your IfModifiedSince and Last-Modified handling is correct

Check server headers

Check your server's headers, check 404-handling and check for correct redirects

Page Title and Headers

Page titles and headers are very important elements for search engines.

Find out about all links on a page, including hidden ones and nofollow-markers

Keyword frequency

Determine keyword frequency for 1,2,3-word phrases

Spider simulator

See a page as a search engine spider will see it, headers, text and links

Javascript content hiding

Hide content on your site from search engines and other crawlers / bots

The AOL search database

Currently completely online, available for your searching and browsing

Mobile browser tools

Website diagnosis tools for mobile browsers, phones, handhelds, etc.

Firefox Extension

Get our Firefox Extension to use these tools from your context-menu!

Search Engine Referrers

A statistic tool to find interesting information about your visitors.

Collected ramblings

Articles, tips, tricks and ideas for websites in general

Yahoo! Secret Site-Info

Yahoo!s information for your site regarding the number of links and deep links

Yahoo! Uniqueness Test

Testing the uniqueness of a web page or a text snippet with shingle analysis

Google datacenter tools

Google World-Wide

Try Google geolocation targeting in search from all over the world.

Google's results over DCs

Check your favorite query on a different datacenter (images, news, blogsearch, etc)

Indexed page count per DC

Find the number of known pages in Google per datacenter

Supplemental index count per DC

Find the number of pages in the supplimental index in Google per datacenter

Recognized links per DC

Find the number of known links in Google per datacenter

Cache-Date per DC

Check the date a URL was last cached by Google per datacenter

Google Pagerank in general

Check Googles PR value for a page

Google Pagerank per DC

Check Googles PR value over multiple datacenters

Give a DC a name!

So you like (or hate) a Google datacenter? Give it a name of your own!

Search with Pagerank

Do a normal Google search (requires free Google API-Key), see results with PR-number

This tool will check your server headers and the HTTP result codes it returns. It will follow any redirects it finds along the way, whenever possible. With this tool you can check to see how your server is redirecting and if your server is returning 404 for URLs which do not exist.

This tool identifies itself with the following user-agent (this might be logged on the server):

oyoy.eu Server Header Checker, User IP: 38.107.191.94 (http://oyoy.eu/)

Please enter the full URL for the page you want to check. The URL must begin with HTTP (secure sites cannot be tested at the moment). Example: http://www.cnn.com/

URL to check:
Show all server header fields


						Results of the http://oyoy.eu/ server-headers test
Tested at 30.07.2010 14:35:40 / from 38.107.191.94:

URL=http://7pills.com//Buy-tadalafil...Generic_Cialis
Result code: 200 (OK / OK)
Date: Fri, 30 Jul 2010 14:35:42 GMT
Server: Apache/2
X-Powered-By: PHP/5.2.8
Set-Cookie: PHPSESSID=57470c2d78eda8a095d3327e55bfe1c6; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding,User-Agent
Keep-Alive: timeout=1, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html;charset=iso-8859-1

A short summary of the result codes:

200 OK
This means that your server was able to return content for the URL you requested.
301 Moved Permanently
The URL you requested has moved permanently, all further queries shoud be directed to the new location. If an old page is no longer valid and you have a new one in it's place, you should use 301-redirects whenever possible. The search engines will then replace the old URL with the new one and transfer any possible "value" of the old URL to the new one.
302 Found
The server has found a temporary redirection. Since this is temporary, this URL should be used once again for the next time (not the new URL).
304 Not Modified
You shouldn't be seeing this here - it only returns 304 when the client asks for a newer version of a URL.
307 Temporary Redirect
This is similar to a 302 redirect, the redirection is temporary and the existing URL should continue to be used.
400 Bad Request
The server didn't understand what you were looking for.
401 Unauthorized
The server does not want to give you access to this content without authentification.
403 Forbidden
The server does not want to help you. period. Authentification will not help in this case.
404 Not Found
Oops, the file you were looking for is not found. Search engines need a 404 in order to know which URLs are valid and which are not. In order to keep any value of the old URLs, you should keep a dummy page at the location of the old URL and 301-redirect from there to the new URL (assuming you have a new one). [ More information on Google and 404-errors ]
410 Gone
The URl you were looking for is... gone. This is similar to 404.
500 Internal Server Error
Your server is melting - something is wrong, it's not answering to your requests properly. Contact your System-Administrator or Web-Hoster!
501 Not Implemented

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