Bulk Keyword Data Tool is very useful tool for webmasters to check keyword's volume, cpc, competition and past 12 months trend in bulk according to top selected countries for free.

Our tool has a feature to detect an empty line, if you have entered 15 keywords within 15 lines but there is 16th line that is empty then you may get an error message with instructions.

We will recommend you to enter your keywords separated by comma in the input area instead of 1 keyword per line to avoid that issue.

No, our bulk keyword data tool is 100% free for everyone. You can use it as much as you can, there is no hidden limitations on keyword research but you can only check the data of maximum 15 keywords in one go.

Each keyword is having a "Check Trend" button so you can find the past 12 months trend by clicking on it.

Because the keyword(s) you are trying is having 0 search volume that's why the "Check Trend" button is not showing you any results for the past 12 months.