Hello, One of my clients have a list of 25,000 potential keywords. Of course, I am not planing on promoting all of them but I am looking to find search volume and KEI for each one of them so we can choose 20-50 keywords best to focus on on. All the keywords research tools I checked are not able to produce such data for 25,000 keywords at once. Do you know any tool that is able to deal with such large amount of keywords?
I am not sure there are any for lists that large. Since most tools tend to illegally scrape information most will get temporarily 'banned' long before you get through that list. Sorry, but I do not think there is anything. You may have to break it into chunks of maybe a 1,000 or so. I do have a list of FREE keyword research tools on my blog that may help (one or two of them may accept large amounts of keywords, but I am not sure as I have never tried that many). 10 Best FREE Keyword Research Tools