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PageRank (or PR)

Internet marketing / search engine optimization (SEO) metric. PageRank is a numeric analysis ranking algorithm, developed by Google, that takes into account, not just that traffic to a site, but also the usability of the site and most importantly the number of links to the site. Consequently, PageRank is used as a gauge for professional link building services.

In simple terms, Google views each link to the page as a vote of confidence for the page.  The more votes that are cast, the more important the page must be. This is then further enhanced by ranking the importance of the casting vote.  In otherwords, if an important site links to the page then this has a bigger impact on the Page Rank for the page than a vote from a site page that has a low Page Rank. While reciprocating links (website A links to B and B links back to A) are not weighted as heavily as one-way links (website A links to B and B does not link back), these still should be important to your link building strategy.

The importance of the page (i.e the Page Rank) is one of the factors used to rank the page in search results. While this is an important factor, it is not the only factor to consider, and should be seen as the measure of the importance of the backlinks pointing to the site.

A good review of the Page Rank calculation is provided by Whitelines.

Not all links are counted by Google and some links may even penalise sites.  It is suggested that Google do not penalise sites for the links pointing in to the site as the webmasters cannot always control which sites them.  However, as webmasters have full control over which sites, they link out to certain links can penalise the site.  Especially links from spam sites or link farms.

A little known fact is that Page Rank and SEO are only loosely connected (and a site with a high Page Rank may appear low on a web search while a low Page Rank site may appear high on the search).  This is because Page Rank is only one of the factors in the ranking algorithm.

So is Page Rank important? The answer is a definitive YES. Site value is based on Page Rank and also as Page Rank is widely known about, the perception is that high rank means more reliable data or a better data source or a more popular website (perception becomes reality).

For the more technical, the page rank algorithm is shown below.

Page Rank Algorithm

For more detail visit the link http://en.wikipedia.org/wiki/PageRank.


Index

1. 301 redirects
2. Above the fold
3. Absolute link
4. AdCenter
5. AdSense
6. AdWords
7. Affliate Marketing
8. Alexa Rank
9. Algorithm
10. Algorithmic Results
11. Alt Tag | Alt Text
12. AltaVista
13. Analytics
14. Anchor Text
15. API
16. ASK
17. Authority
18. Authorship
19. Backlink
20. Banned Site
21. Banner Ad
22. Bing
23. Black Hat SEO
24. Blacklisted
25. Blog
26. Bot
27. Bounce rate
28. Branded Keyword
29. Breadcrumb
30. Broken Link
31. Cache
32. Caffeine (Google)
33. Call to Action
34. Canonical URL
35. ccTLD
36. Citation
37. CLI
38. Click Fraud
39. Click Probability
40. Click-Through
41. Click-Through Rate (CTR)
42. Cloaking
43. Clustering
44. CMS (Content Management System)
45. Comment Spam
46. Comments Tag
47. Concept Search
48. Conceptual Links
49. Content Management System (CMS)
50. Content Marketing
51. Contextual Link Inventory (CLI)
52. Conversion
53. Conversion Analytics
54. Conversion Rate
55. Cost-Per-Acquisition (CPA)
56. Cost-Per-Action (CPA)
57. Cost-Per-Click (CPC)
58. Cost-Per-Impression
59. Cost-Per-Thousand (CPM)
60. CPA
61. CPC
62. CPM
63. Crawl Budget
64. Crawl Depth
65. Crawl Frequency
66. Crawler
67. CTR
68. Dead link
69. Delisted
70. Description Tag
71. Design for SEO
72. Direct Search
73. Directory
74. Disavow backlinks
75. DMOZ
76. Domain Parking
77. Doorway Page
78. Duplicate Content
79. Dynamic Content
80. Earnings Per Click
81. Emphasis tag
82. Entry Page
83. External Link
84. Faceted Navigation
85. Faceted Search
86. FFA
87. Flash and SEO
88. Flash Optimization
89. Flog
90. Friendly URL
91. Fuzzy Search
92. GAP
93. Gateway Page
94. Google
95. Google AdSense
96. Google Advertising Professional
97. Google AdWords
98. Google Business Places
99. Google Knowledge Graph
100. Googlebot
101. Graphical Search Inventory (GSI)
102. Gray Hat SEO
103. Hashtag
104. Header Tags
105. Headings
106. Hidden Text
107. Hijacking
108. Hit
109. Home Page
110. HTML
111. HTTP
112. Hummingbird (Google)
113. Hyperlink
114. Hypertext-matching analysis
115. IBL
116. Image SEO
117. Image tag attributes
118. Impressions
119. Inbound Links
120. Index
121. Internal Links
122. Invisible Web
123. Jump Page
124. Keyword Density
125. Keyword Marketing
126. Keyword Placement
127. Keyword Proximity
128. Keyword Stuffing
129. Keyword Submission
130. Keywords
131. Landing Page
132. Link
133. Link Baiting
134. Link Building
135. Link Exchange
136. Link Farm
137. Link Inversion
138. Link Popularity
139. Link Schemes
140. Link Spamming
141. Link Text
142. Listings
143. Load Speed
144. Local Search
145. Long Tail Keywords
146. Meta Description Tag
147. Meta Keywords Tag
148. Meta Robots Tag
149. Meta Tags
150. Mirror Sites
151. Natural Listings (or Natural Optimization)
152. Navigational search
153. Negative SEO
154. nofollow attribute
155. noodp tag
156. OBL
157. Off-site SEO
158. On-site SEO
159. Open Directory Project
160. Organic Listings (or Organic Optimization)
161. Organic Search Engine Optimization
162. Outbound Links
163. Page Content
164. Page title
165. PageRank (or PR)
166. PageRank sculpting
167. Paid Inclusion
168. Paid Listings
169. Paid Placement
170. Panda (Google)
171. Parked domain
172. Pay for performance
173. Pay per Impression
174. Pay-Per-Click (PPC)
175. Penguin (Google)
176. Penguin 2.0 (Google)
177. Plus One
178. PPC
179. Pull Quotes
180. Quality Content
181. Query
182. Ranking
183. Reconsideration request
184. Redirects
185. rel attribute
186. rel canonical
187. rel next and rel prev
188. Relative Link
189. Relevancy
190. Results Page
191. Rich snippets (microdata, microformats, and RDFa)
192. Robot
193. Robots Exclusion Protocol
194. Robots.txt
195. Search Engine
196. Search Engine Guidelines
197. Search Engine Marketing (SEM)
198. Search Engine Marketing Professional Organization (SEMPO)
199. Search Engine Optimization (SEO)
200. Search Engine Registration
201. Search Engine Results Page
202. Search Engine Submission
203. Search Ranking
204. Search Terms
205. Semantic Search
206. SEO
207. SERP
208. Site Map
209. Site Maturity
210. Site Optimization
211. Site Speed
212. Sitelinks
213. Sitemap protocol
214. SMO
215. Snippets
216. Social Authority
217. Social Media
218. Spam
219. Speed
220. Spider
221. Spinning
222. Static Content
223. Stop Words
224. Tailored Search Results
225. Technorati
226. Tiny Text
227. Title Tag
228. TLD - Top Level Domain
229. Traffic Analysis
230. Trustrank
231. Unnatural Links
232. URL
233. Viral Marketing
234. White Hat SEO
235. XML
236. YaCy
237. Yahoo
238. ZIP

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