diff --git a/R/collect.R b/R/collect.R
index 6c43751..a9aab51 100644
--- a/R/collect.R
+++ b/R/collect.R
@@ -94,6 +94,9 @@ pb_collect <- function(urls,
     ) %>%
       dplyr::rename(url = urls)
 
+    # conversion removes illegal characters
+    out$content_raw <- iconv(out$content_raw, from = "ISO-8859-1", to = "UTF-8")
+
     if (collect_rss) {
       rss <- grepl("<rss.+>", out$content_raw)
       if (any(rss)) {
diff --git a/R/deliver.R b/R/deliver.R
index a8df11f..121d6d6 100755
--- a/R/deliver.R
+++ b/R/deliver.R
@@ -70,9 +70,12 @@ pb_deliver.data.frame <- function(x, verbose = NULL, ...) {
     )
 
 
-    out <- purrr::list_rbind(purrr::map(seq_along(u$url), function(i)
-      pb_deliver_paper(x = u[i, ], verbose, pb)))
-    return(out)
+    purrr::list_rbind(purrr::map(seq_along(u$url), function(i) {
+      cbind(
+        u[i, c("url", "expanded_url", "domain", "status")],
+        pb_deliver_paper(x = u[i, ], verbose, pb)
+      )
+    }))
   }))
 
   if (verbose) {
@@ -80,6 +83,13 @@ pb_deliver.data.frame <- function(x, verbose = NULL, ...) {
     options(cli.progress_bar_style = oldstyle)
   }
 
+  # tell user about warnings
+  ws <- mget(ls(inform_env), envir = inform_env)
+  if (length(ws) > 0) {
+    names(ws) <- rep("i", length(ws))
+    cli::cli_warn(ws)
+  }
+
   return(normalise_df(out))
 }
 
diff --git a/R/utils.R b/R/utils.R
index 68eeef4..2864a0d 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -164,8 +164,7 @@ pb_tick <- function(x, verbose, pb) {
 #' @noRd
 warn_once <- function(id) {
   if (is.null(inform_env[[id]])) {
-    cli::cli_warn("No parser for domain {.strong {id}} yet, attempting generic approach.")
-    inform_env[[id]] <- TRUE
+    inform_env[[id]] <- cli::format_warning("No parser for domain {.strong {id}} yet, attempting generic approach.")
   }
 }
 inform_env <- new.env()