BlogRank changes

We have made a few changes to our BlogRank algorithm in order to make it easier to distinguish between the blogs at the top of the BlogRank scale.

The previous version of the algorithm had the trait of slowly collecting more and more blogs at the top of the BlogRank scale as our blog index grew larger.

This has now been adjusted, making sure only the few most popular blogs has BlogRank 10. For blogs having a low BlogRank this change won’t be noticeable, but a significant part of the high-ranking blogs will get a lower BlogRank, which can be seen in the graphs below:

BlogRank 2-6 distribution for Swedish blogs before and after the change

Distribution of Swedish blogs with BlogRank 2-6 before and after the change.

BlogRank 6-10 distribution for Swedish blogs before and after the change

Distribution of Swedish blogs with BlogRank 6-10 before and after the change.

For the exact numbers on how much the BlogRank distribution has changed for all Swedish blogs, see the table below:

BlogRank Number of blogs before Number of blogs after
1 101,380 104,262
2 4,295 3,995
3 2,081 1,435
4 1,170 609
5 694 279
6 429 129
7 299 54
8 177 19
9 141 13
10 137 8

For details about BlogRank, authority and top authority see the ranking documentation.