Search Engine
Keywords
Location of Keywords
Document Length
HTML Title
Meta tags
Themes
What's spam?
Other info
AltaVista Only the first two occurrences are indexed, use in <title> and top of the page Top of the page, <h> tags Longer pages favored,
600-900 words
Most important keywords here, 300 characters,
short titles preferred
Not very important, but use them just in case Yes, consistent keywords throughout the site

Repetition of keywords one after the other, meta refresh tags, invisible text, identical pages, excessive submissions.

Repeat keywords in files names. Use keywords in text links.
Excite Higher frequency than usual in body text - 7% <h> tags,
<style> tags, top of the page
Medium-sized pages,
200-300 words
Keywords here, multiple titles recommended,
6 words or less
Not indexed,
description used for summary only
Yes, consistent keywords throughout the site. Repetition of keywords one after the other, meta refresh tags, nearly identical pages, invisible text Repeat keywords in files names, use comment tags
Google Weight and proximity matter most
   <h> tags,
bold text
Wide range, from 50-600 words. Keywords here, up to 90 characters No Yes, consistent keywords throughout the site Use of link farms, cloaking, excessive repetition Link popularity is the most important factor
HotBot Frequency and weight in the body are most important URL text and title Short, 100-250 words Most important, keywords here, up to 105 characters Very important, both description (150 characters) and keywords (75 characters) Yes, consistent keywords throughout the site. Repetition of keywords one after the other, meta refresh tags, nearly identical pages, invisible text, irrelevant keywords, too many submissions Use keywords when describing links, and naming files
iWon Keywords should be in title, body and meta tags Throughout the page Short, 100-250 words Up to 105 characters Both are supported; description limited to 250, keywords to 1017 Yes, consistent keywords throughout the site. No info available, should be similar to HotBot iWon uses DirectHit and Inktomi. Site popularity counts.
Lycos Keywords spread throughout the page and in the title Top of the page, <h> tags Short, 100-250 words Keywords here, second word, up to 1129 characters Not indexed by Fast, but shows up in top rankings Yes, consistent keywords throughout the site Repetition of keywords one after the other, nearly identical pages, invisible text Fast, which powers Lycos, seems OK with meta refreshes (for now)
Not recommended
Use ALT tags
Northern Lights ALT, comment and meta tags aren't used. Frequency in the text is important.

 Top of the page

Wide range, from 50-600 words. Keywords here, 10-12 words No Yes, Northern Light does examine keywords in "context", meaning that keywords should be consistent No spam policy found on the site Hidden text was found on some pages (not recommended)
Search Engine
Keywords
Location of Keywords
Document Length
HTML Title
Meta tags
Themes
What's spam?
Other info