Using https://fair-checker.france-bioinformatique.fr/check * on `https://doi.org/10.1016/j.envint.2019.03.060` results in 87.5% score * on ` https://doi.org/10.1016/j.envint.2019.03.060` (note the leading space), results in 16.67% score (but it says the URL is valid) Most likely this is a trim issue, where the input field is not properly processed