ObjectsSearch.com take spam very seriously and spend a great deal of time and effort trying to eliminate spam techniques.
This tool(Beta) analyzes a web page, searching for characteristics that search engines could consider spam. If you don't know what "search engine spamming" , you can read What is considered spam?.
Please enter your full URL , including the http:// prefix. For example: http://www.yoursite.com/.
What is considered spam?
Pages created deliberately to trick the search engine into offering inappropriate, redundant, or poor-quality search results.
Techniques include:
Keywords unrelated to site
Redirects
Keyword stuffing
Mirror/duplicate content
Tiny Text
Doorway pages
Link Farms
Cloaking
Keyword stacking
Gibberish
Hidden text
Domain Spam
Hidden links
Mini/micro-sites
Page Swapping (bait &switch)
Typo spam and cyber squatting
Spam Techniques To Avoid
Invisible Text. Text that is the same color as the
background pages; enables site owner to place more keywords on the page
and attract more spiders.
Keyword Stuffing. Pretty much what it sounds like.
Keyword stuffing consists of placing as many relevant or irrevelant
keywords and phrases as you possibly can in content and Meta tags.
Unrelated Keywords. If you have a site about
Depression era glass bowls and your keywords include "Viagra", that would be considered unrelated keywords.
Doorway Pages. Doorways are pages optimized only for
search engine spiders in order to attract more spiders, thus more
users. Usually optimized for just one word or phrase and only meant for
spiders, not users.
Tiny Text/Alt Text. Tiny text consists of placing
keywords and phrases in the tiniest text imaginable all over your site.
Most people can't see them, but spiders can. Alt text spamming is
stuffing the alt text tags (for images) with unrelated keywords or
phrases.
Mirror or Duplicate Sites. Don’t duplicate your site,
name it something different, and submit it again. This is not only ill
advised, but it borders on stupid. Search engines will know if you do
this.
Submitting Repeatedly. Submitting your site to a
search engine or directory repeatedly in a short period of time is a
great way to get your site banned, or at least delayed.