Crawler based search engines use a crawler to search a webpage for information that people would search. The crawler can detect when you change things in your website, and will list them accordingly. Each crawler based search engine is made up of 3 things.
- Crawler or Spider
- Index
- Search Engine Software
As I said earlier, these crawlers or spiders search the webpage for information and upload them to an index to be accepted by the Search engine software. There are so many factors that go into ranking a webpage that I will not be able to explain them all, rather I will list them below.
ON PAGE FACTORS
- Location of Keywords
- Frequency
OFF PAGE FACTORS
- Link Analysis
- Link Popularity
- Date of Article Published
- Length
- Proximity of Query Terms
- Proper Nouns
Search Engine Spam is an unethical tactic of optimizing the a website to rank it high in a search. These tactics are used to trick a search engines into giving higher ranking to websites that don't necessarily belong there. Many search engines penalize websites that use spam. There many different ways that someone can use spam to get higher rankings.
- Search Engine Spam Examples
- 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
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