Run CRAN URL Checks from Older R Versions

Provide the URL checking tools available in R 4.1+ as a package for earlier versions of R. Also uses concurrent requests so can be much faster than the serial versions.


Reference manual

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1.0.1 by Gábor Csárdi, 2 months ago

Report a bug at

Browse source code at

Authors: R Core team [aut] (The code in urltools.R adapted from the tools package) , Jim Hester [aut] , Gábor Csárdi [aut, cre] , RStudio [cph, fnd]

Documentation:   PDF Manual  

GPL-3 license

Imports cli, curl, tools, xml2

Suggests covr

See at CRAN