diff --git a/.gitignore b/.gitignore
index f13b077..576edb2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ inst/doc
 ropenscience onboarding.md
 dev.r
 dev.R
+revdep/*
diff --git a/cran-comments.md b/cran-comments.md
index e9e4209..2a4272b 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -17,6 +17,57 @@
 
 
 
+## Reverse Dependency Checks
+
+Seems ok.
+
+
+$revdeps
+NULL
+
+$platform
+ setting  value                       
+ version  R version 3.4.4 (2018-03-15)
+ system   x86_64, mingw32             
+ ui       RStudio (1.1.453)           
+ language (EN)                        
+ collate  German_Germany.1252         
+ tz       Europe/Berlin               
+ date     2018-07-18                  
+
+$dependencies
+ package      * version date       source                       
+ covr           3.1.0   2018-05-18 CRAN (R 3.4.4)               
+ dplyr          0.7.6   2018-06-29 CRAN (R 3.4.4)               
+ future         1.8.1   2018-05-03 CRAN (R 3.4.4)               
+ future.apply   1.0.0   2018-06-20 CRAN (R 3.4.4)               
+ httr           1.3.1   2017-08-20 CRAN (R 3.4.4)               
+ knitr          1.20    2018-02-20 CRAN (R 3.4.4)               
+ magrittr       1.5     2014-11-22 CRAN (R 3.4.4)               
+ rmarkdown      1.10    2018-06-11 CRAN (R 3.4.4)               
+ robotstxt      0.6.2   2018-07-18 local (ropensci/robotstxt@NA)
+ spiderbar      0.2.1   2017-11-17 CRAN (R 3.4.4)               
+ stringr        1.3.1   2018-05-10 CRAN (R 3.4.4)               
+ testthat       2.0.0   2017-12-13 CRAN (R 3.4.4)               
+
+$results
+$results$spiderbar
+## spiderbar (0.2.1)
+Maintainer: Bob Rudis <bob@rud.is>  
+Bug reports: https://github.com/hrbrmstr/spiderbar/issues
+
+0 errors | 0 warnings | 1 note 
+
+```
+checking compiled code ... NOTE
+File 'spiderbar/libs/x64/spiderbar.dll':
+  Found no calls to: 'R_registerRoutines', 'R_useDynamicSymbols'
+
+It is good practice to register native routines and to disable symbol
+search.
+
+See 'Writing portable packages' in the 'Writing R Extensions' manual.
+```