PageRank and Links

Search Engine History Question:

Sergey Brin

Stanford University

Larry Page

What do these 2 guys have to do with Stanford University?

Search Engine History Answer:

The Original PageRank AlgorithmPageRank by

PagePassable PageRank

PageRank in Practice

Content 25

Points

Picture 5 Points

Video15

Points

Bolded List

10 PointsExternal

Links5 Points

The Original PageRank Algorithm in Practice

Additional PageRank Factors

1.

2.

8.

3.

9.

4.

5.

6.

7.

Anchor TextRelevanc

eContextAuthorit

ySource TLD’s

TrustSource IndependenceLinking

DomainsTemporal Factors

Anchor Text: A clickable part of a link from one web page to another via text.

Relevance: Links that originate from sites/pages on the same topic as the publisher’s site, or a closely related topic.

Context: A deeper context of the page linking with factors like: nearby links, page placement, nearby text, close section header, overall page context, and overall site context.

Authority: Sites that are linked to by most of the important sites relevant to a particular topic.

Source TLD’s: The notion that certain TLD’s have preferential treatment (.edu, .gov, .mil, etc.) They all have the same treatment based on authority, relevance and trust. Different site topics require different TLD’s to make sense within their field.

Trust: How easy or difficult it is for spammers to get links on a particular site.

Source Independence: Links received from third party sites.

Linking Domains: A singular link from 100 websites has more value than 100 links from the same website.

Source Diversity: The percentage of links coming to your site based on the linking sites type. (Blog, Directory, Review, Article, News, Social, Etc.)

Temporal Factors: Timely factors pertaining to links. A few factors like: When did the link first appear? When did the link disappear? How long has the link existed? How quickly were the links published?

How do search engines use links?Index

InclusionCrawl Rate

Ranking

1.

2.

3.

1.

2.

3.

1.

2.

3.

Determining a Links ValueOutbound

LinksAuthorityRelevanc

ePageRank

8 29 10 55

5 25100050

Achieving PageRank is like Finding Gold

Achieving PageRank is like Finding Gold

Achieving PageRank is like Finding Gold

Achieving PageRank is like Finding Gold

Achieving PageRank is like Finding Gold

Thanks for Attending and Participating!For a special prize lets see how closely you were paying

attention.Write your answers on the back of your paper and I wouldn’t recommend copying off your

neighbor…Question 1: What 6 Images were on the title slide before the

presentation?Question 2: What factor didn’t have a picture in

section 3?Question 3: What was the name of the legendary gold miner in

Gold Rush?