Difference in Serp updates

[Justian]

I've notice that the Serp for some keywords are updated more frequently then others (or am I mistaken?)

Do any of you have any data that might support that theory? what seems to be the longest periode it takes for a SERP to update for a certain keyword?

Is there any rules of thumps on this matter?

[Martijn_Scheijbeler]

HI Justian,

There's no definitive answer on this one as it really depends on a lot of things, how many sites are changing their content for this specific content, what did the current top 100 pages change on their pages and what's the overal competition on the keyword.

For some keywords it could be that the serp changes within a day but sometimes for long tail keywords it could also take weeks to see effects for the work you've done.

[Justian]

Well the specific keyword that I am targeting has a difficulty score of 48 and the other pages are not updated frequently, To me honest I doubt that they are updated more then a few times a year.

I know this is a minor issue and I was just curios to hear, what other people had noticed about the update frequency of certain niche keywords.

But what I get from your post is that, some keywords are updated withing a few hours and some withing a month. Is there any rare cases in you opinion that might take even longer then that?