200 parameters of the algorithm Google search

Domain: 13 factors

Age of domain;

The length of the domain name;

Information about registering a domain hidden / anonymous;

The site with top-level domain (geographic focus, for example,. Com versus. Co.uk);

The site with top-level domain (eg,. Com versus. Info);

Subdomain or domain level 2;

The history of the domain (how often he changed his IP address);

Previous owners of the domain (how often a change of ownership);

Key words in the domain;

IP address of the domain

Domains with the same IP address;

External reference to the domain (without options);

Geographical directions set in Google Webmaster Tools.

Server: 2 factors

Geographic location of the server;

Reliability / uptime server.

Architecture: 8 factors

URL structure;

HTML structure;

Semantic structure;

Using external CSS / JS files;

Availability of website structure (use of inaccessible navigation, JavaScript, etc.);

Using the canonical URL;

"Right» HTML code;

The use of cookies.

Content: 14 factors

Language content;

Unique content;

The volume of content (text versus HTML);

Incoherent density content (links in comparison with the text);

Value of "pure" textual content (without links, images, codes, etc.);

Thematic focus / temporal coverage content (for example, seasonal search);

Semantic information (phrase indexing and the simultaneous appearance of light-phrases);

Taxonomic (classified) flag for the general categories (transactional, informational, navigation);

Content / market niche;

Using selected key words (dictionary of gambling, dating);

Text in Pictures;

Malicious content (which may be added hackers);

A large number of misspelled words, bad grammar and transfer 10000 words without punctuation;

Using the unique / brand new phrases.

Internal Links: 5 factors

Number of internal links on the page;

The number of internal links to a page with identical / target ankornym text;

The number of internal links on the page from the content (instead of the navigation bar, how to navigate through files, etc.);

The number of links that use the attribute «nofollow»;

The density of internal links.

Factors website: 7 factors

Contents robots.txt on the website;

The frequency of a full upgrade of the site;

The total size of the site (pages);

The age of the site since it was first identified on Google;

XML sitemap;

The index of confidence in the page (contact information (even more important for the local search), Privacy Policy, Service Type (Type of Service, TOS), and the like);

Type of site (eg, a blog instead of an information site in top 10).

Specific factors of pages: 9 factors

Meta Tags Robots Pages;

Age page;

Background information on the page (frequency editing and% of pages that are affected (which changed) to edit the page);

Duplication of content from other pages (internal duplicate content);

Readability of content page (?);

Page loading time (many factors);

Type page (page "About Us" in comparison to the page with the basic content);

Inside the popularity of pages (number of internal links on this page);

Foreign popularity of pages (number of external links per page than other pages on this site).

Using keywords and separate them: 13 factors

Key words in the title page;

Key words in the beginning of the title page;

Keywords in Alt-tags;

Key words ankornom text of internal links (internal ankorny text);

Key words in the text ankornom outbound links (?);

Key words in the text that appears in bold or italic;

Key words at the beginning of the main text;

Key words in the text;

Synonyms of keywords related to the subject page / site;

Keywords in file names;

Keywords in URL;

The absence of "intentional accidents" (placing "keywords" in the domain "keyword" in the file name, "keyword" is the first word in the title, "keyword" - the first word of the first line of the description and keyword tag ...);

The use (misuse) of key words used in tag HTML-comments.

Outgoing Links: 8 factors

The number of outgoing links (one domain);

The number of outgoing links (one page);

The quality of the pages to which site provides links;

Links to bad sites from the same IP address;

Relevant outbound links;

Links to 404 pages and pages of other errors;

Links to agencies with SEO client sites;

Pictures with active links.

Profile Backlinks: 21 factor

Relevance of referring sites;

Relevance of referring pages;

Quality of referring sites;

The quality of referencing Web pages;

Backward links within the network of sites;

Mutual citation (in which sites have the same sources of backlinks);

Variety profiles links:

- Variety ankornogo text;

- Different IP addresses of sites to which reference is made;

- Geographic diversity;

- Various TLDs (Top Level Domain, TLD);

- A variety of topics;

- Different types of reference sites (directories, handbooks, etc.);

8. The number of authoritative references (CNN, BBC, etc.) on one external link;

9. Backlinks to bad sites with the same IP address (the absence / presence of backlinks with the marked sites);

10. Value of reciprocal links (relevant to the entire profile of backlinks);

11. Value options for social networks (links to social networking sites, compared with the whole profile of backlinks);

12. Trends and examples of backlinks (for example, a sudden increase or decrease in the number of backlinks);

13. Citation on Wikipedia and Dmoz;

14. History Profile trackbacks (ever used for buying / selling links, etc.);

15. Backlinks to social bookmarking sites.

Every single link back: 6 factors

The credibility of the zone domain (. Com. Compared to. Gov);

The credibility of invoking domain;

The credibility of the referring page;

Location of links (bottom of page, navigation, main text);

Ankorny link text (Alt tags and images, from which reference is made);

Link title attribute (?).

Profiles and the behavior of visitors: 6 factors

Number of visits;

Demographics of visitors;

Bounce;

Other sites that usually load the visitors;

Trends and examples of visits (eg, a sudden increase in incoming traffic);

Clickthrough site in the SERP (as compared with other sites).

Penalties, filters and manipulation: 12 factors

Key words for use / insert key words;

Filter for purchase links;

Filter for selling links;

Filter for spam (comments, forums, and other spam links);

Cloaking;

Hidden text;

Duplicate Content (external overlap);

History of previous sanctions for this domain;

History of previous sanctions for this owner;

History of previous sanctions or other property of the owner (?);

Records of previous hacker attacks;

Evaluation Error 301: double redirects / channels redirects, or redirects to a page with a lead of 404.

Other factors (6):

Domain registration on the Google Webmaster Tools;

The presence of a domain in Google News;

The presence of a domain in Google Blog Search;

The use of a domain in Google AdWords;

The use of a domain in Google Analytics;

External references to the name / trademark.