urlchecker: 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.

Version: 2.0.0
Depends: R (≥ 4.1)
Imports: cli, curl, gitcreds, rlang (≥ 1.1.0), tools, utils, xml2
Suggests: covr, testthat (≥ 3.0.0), webfakes, withr
Published: 2026-07-08
DOI: 10.32614/CRAN.package.urlchecker
Author: R Core team [aut] (The code in urltools.R adapted from the tools package), Jim Hester ORCID iD [aut], Gábor Csárdi [aut, cre], Posit Software, PBC ROR ID [cph, fnd]
Maintainer: Gábor Csárdi <csardi.gabor at gmail.com>
BugReports: https://github.com/r-lib/urlchecker/issues
License: GPL-3
URL: https://github.com/r-lib/urlchecker, https://urlchecker.r-lib.org/
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: urlchecker results

Documentation:

Reference manual: urlchecker.html , urlchecker.pdf

Downloads:

Package source: urlchecker_2.0.0.tar.gz
Windows binaries: r-devel: urlchecker_1.0.1.zip, r-release: urlchecker_1.0.1.zip, r-oldrel: urlchecker_1.0.1.zip
macOS binaries: r-release (arm64): urlchecker_2.0.0.tgz, r-oldrel (arm64): urlchecker_2.0.0.tgz, r-release (x86_64): urlchecker_2.0.0.tgz, r-oldrel (x86_64): urlchecker_2.0.0.tgz
Old sources: urlchecker archive

Reverse dependencies:

Reverse imports: devtools, goodpractice, sketchy
Reverse suggests: shiny.webawesome

Linking:

Please use the canonical form https://CRAN.R-project.org/package=urlchecker to link to this page.