Historic Index Update

By Alex |

We have now updated our Historic Index with data for start of June 2013. Here are the new stats: Historic Index – Unique Pages crawled: 501,925,972,687 Unique URLs: 2,008,056,406,541 Date range: 07 Nov 2007 to 09 Jun 2013 There is an increase in unique crawled pages but reduction of unique URLs due to roll out…


A Study of Subnet/ IP Link Ratios

By Neep Hazarika |

This short blog is in response to a recent support ticket querying whether particular domains display significant differences in terms of the ratio of referring subnets to referring IP addresses. We were asked what a “normal” value of this ratio could be. A statistical study was performed on the Majestic Million data. We found that…

MajesticSEO Beginners Guide to Correlation: Part 3

By Neep Hazarika |

In Parts 1 and 2, we have looked at the definitions of correlation, population and sample size. In this part, we will go through the essentials of the mathematics involved.  Before we can proceed any further, however, we have to define certain fundamental statistical concepts. Statistical Measures of a Data Set In this section, it…


Historic Index Update

By Alex |

We have now updated our Historic Index with data for start of May 2013. Here are the new stats: Historic Index – Unique Pages crawled: 472,383,604,906 Unique URLs: 3,584,026,567,247 Date range: 07 Oct 2007 to 08 May 2013 There is an increase in unique crawled pages but reduction of unique URLs due to roll out…

Identifying a Bad Backlink Profile

By Barrie Smith |

(This is a guest post by Barrie Smith. His observations and insights are his own.) I have recently been keeping a tab on Google page 1 results for “Payday Loans” – a search term historically showing results of websites ranking having used spammy, dodgy and/or underhand link building techniques. Even in the year 2013 –…


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