The algorithm used by Google, yahoo, MSN Live Search to calculate search results can change at any time, therefore we generally avoid citing precise details regarding particular search engine and their algorithm. Search engines have been known to occasionally modify their algorithms and, as a result, turn the SERP upside down.
Ranking must be achieved in all search engines using the same web pages. Furthermore, calculations such as “optimal keyword density” and “optimal page content length” for various search engines are almost entirely out of date.
It is the time to briefly discuss the most important and consistently considered factors as a quick primer for the web site developer. The factors that affect search engine rankings into the following general categories:
• Visible on-page factors
• Invisible on-page factors
• Time-based factors
• External factors
Visible On-Page factor:
• Page Title
• Page Headings
• Page Copy
• Outbound Links
• Keywords in Page URL and Domain Name
• Internal link structure and anchors
Invisible On-Page Factors:
• Meta description
• Meta Keywords
• Alt and Title attributes
• Page structure considerations
Time-based factors:
• Site and Page age
• Link age
• Domain Registration Length
External factors:
• Quality, Quantity, and relevance of inbound links
• Link churn
• Link acquisition rate
• Link anchor text
• Reciprocal Links
• Number of links on a page
• Link Location
• Web Standard Compliance
• Semantic relatios among linkss on a page
Ranking must be achieved in all search engines using the same web pages. Furthermore, calculations such as “optimal keyword density” and “optimal page content length” for various search engines are almost entirely out of date.
It is the time to briefly discuss the most important and consistently considered factors as a quick primer for the web site developer. The factors that affect search engine rankings into the following general categories:
• Visible on-page factors
• Invisible on-page factors
• Time-based factors
• External factors
Visible On-Page factor:
• Page Title
• Page Headings
• Page Copy
• Outbound Links
• Keywords in Page URL and Domain Name
• Internal link structure and anchors
Invisible On-Page Factors:
• Meta description
• Meta Keywords
• Alt and Title attributes
• Page structure considerations
Time-based factors:
• Site and Page age
• Link age
• Domain Registration Length
External factors:
• Quality, Quantity, and relevance of inbound links
• Link churn
• Link acquisition rate
• Link anchor text
• Reciprocal Links
• Number of links on a page
• Link Location
• Web Standard Compliance
• Semantic relatios among linkss on a page
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