I learned about this service in a GeekBrains course, where it was mentioned as an example for text analysis of articles, and it truly impressed me! It has a wonderful feature for checking text against metrics. In my opinion, I recommend it to everyone. Among the advantages - it provides real LSI, takes into account not only occurrences but also declensions, and can additionally calculate bigram and trigram metrics, which is quite rare. You can analyze both competitors from the search results and your own manually curated list, which is also not very common.
