In The name of god
The complete list of parameters that are considered by search engines:
Documents Attributes:
Document Type
Document Size
Visible Text
Visible Words
Text-To-HTML Ratio
Number of Search Terms
Number of Search Terms in Bold Face
Search Terms Density
Search Terms Position
HEAD Section Size
HTTP Response Code
Web Site Age
Flash and Shockwave
Java
MIDI
Wav
Number of META Tags
Number of META Refresh Web Pages
META Refresh Time
Robots.txt
Link Popularity:
Link Popularity
Link from Directories
URL Attributes:
URL Length
Number of Words in URL
Proportion of Web Pages with Search Terms in URL
Number of Search Terms in URL
Search Term Density in URL
Search Term Position in URL
Proportion of Web Pages with One or More Hyphens in URL
Proportion of Web Pages with One or More Double Hyphens in URL
Proportion of Web Pages with One or More Question Marks in URL
Proportion of Web Pages with One or More Tildes in URL
Proportion of Web Pages with CGI in URL
Number of Directories in URL
Top Level Domains
Titile Tag:
Number of TITLE Tags
Proportion of Web Pages with Search Terms in Title Tag
Number of Search Terms in TITLE Tags
TITLE Tags Length
Number of Words in TITLE Tags
Search Term Density in TITLE Tags
Search Term Position in TITLE Tags
No Meaningful Title
META Keywords:
Number of Words META Keywords Tags
Proportion of Web Pages with Queried Search Term in META Keywords Tag
META Keywords Contents Length
Number of Entries in META Keywords Tag
Number of Queried Search Terms in the META Keywords Tag
Search Term Density in META Keywords Tag
Search Term Position in META Keywords Tag
Entry Separation in META Keywords Tag
META Description:
Number of Entries in META Description
Proportion of Web Pages with Search Terms in META Description Tag
META Description Contents Length
Number of Words in META Description Tag
Number of Search Terms in META Description Tag
Search Term Density in META Description Tag
Search Term Position in META Description Tag
Number of Complete Sentences in META Description Tag
H1 Headlines:
Proportion of Web Pages with Search Terms in H1 Headlines
Number of H1 Tags
Number of H1 Headlines with Search Terms
Average Length of H1 Headlines
Average Number of Words in H1 Headlines
Number of Search Terms in H1 Headlines
Average of Search Term Density in H1 Headlines
Average of Search Term Position in H1 Headlines
H2 Headlines:
Proportion of Web Pages with Search Terms in H2 Headlines
Number of H2 Tags
Number of H2 Headlines with Search Terms
Average Length of H2 Headlines
Average Number of Words in H2 Headlines
Number of Search Terms in H2 Headlines
Average of Search Term Density in H2 Headlines
Average of Search Term Position in H2 Headlines
A HREF Link URLs (Same Site and Outbound)
Proportion of Web Pages with Search Terms in HREF Link URLs
Number of A HREF Links
Number of HREF Link URLs with Search Terms
Average Length of HREF Link URLs
Average Number of Words in HREF Link URLs
Number of Search Terms in HREF Link URLs
Average of Search Term Density in HREF Link URLs
Average of Search Term Position in HREF Link URLs
Same Site A HREF Link URLs:
Proportion of Web Pages with Search Terms in Same Site Link URLs
Number of Same Site Links
Number of Same Site Links URLs with Search Terms
Average Length of Same Site Link URLs
Average Number of Words in Same Site Link URLs
Number of Search Terms in Same Site Link URLs
Average of Search Term Density in Same Site Link URLs
Average of Search Term Position in Same Site Link URLs
Outbound A HREF Link URLs:
Proportion of Web Pages with Search Terms in Outbound Link URLs
Number of Outbound Links
Number of Outbound Link URLs with Search Terms
Average Length of Outbound Link URLs
Average Number of Words in Outbound Link URLs
Number of Search Terms in Outbound Link URLs
Average of Search Term Density in Outbound Link URLs
Average of Search Term Position in Outbound Link URLs
Link Texts (Same Site and Outbound):
Proportion of Web Pages with Search Terms in Link Texts
Number of Link Texts with Search Terms
Average Number of Words in Link Texts
Number of Search Terms in Link Texts
Average of Search Term Density in Link Texts
Average of Search Term Position in Link Texts
Proportion of Web Pages with Search Terms in Same Site Link Texts
Number of Link Texts of Same Site Links with Search Terms
Average Length of Link Texts of Same Site Links
Average Number of Link Texts of Same Site Links
Number of Search Terms in Link Texts of Same Site Links
Average of Search Term Density in Link Texts of Same Site Links
Average of Search Term Position in Link Texts of Same Site Links
Proportion of Web Pages with Search Terms in Outbound Link Texts
Number of Link Texts of Outbound Links Links with Search Terms
Average Length of Link Texts of Outbound Links
Average Number of Link Texts of Outbound Links
Number of Search Terms in Link Texts of Outbound Links
Average of Search Term Density in Link Texts of Outbound Links
Average of Search Term Position in Link Texts of Outbound Links
Images:
Number of Images
Number of GIF Images
Number of JPEG Images
Number of PNG Images
IMG ALT Attributes:
Proportion of Web Pages with Search Terms in IMG ALT Texts
Number of IMG ALT Texts
Number of IMG ALT Texts with Search Terms
Average Length of IMG ALT Texts
Average Number of Words in IMG ALT Texts
Number of Search Terms in IMG ALT Texts
Average of Search Term Density in IMG ALT Texts
Average of Search Term Position in IMG ALT Texts
HTML Comments:
Proportion of Web Pages with Search Terms in HTML Comments
Number of HTML Comments
Number of HTML Comments with Search Terms
Average Length of HTML Comments
Average Number of Words in HTML Comments
Number of Search Terms in HTML Comments
Average of Search Term Density in HTML Comments
Average of Search Term Position in HTML Comments
JavaScript Usage
Average JavaScript Code Length
Cascading Style Sheets:
Cascading Style Sheets Usage
Average Cascading Style Sheets Code Length
منبع: کتاب یک یا دوهزار ویک
نویسنده :مهندس مهدی رودکی
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