diff --git a/README.md b/README.md
index 3a754ad..599dad4 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,7 @@ Monitoring
   * [check_postgresql_replication.sh](https://forge.tourmentine.com/n/scripts/src/master/monitoring/check_postgresql_replication.sh) => check postgresql's replication lag.
   * [check_rspamc](https://forge.tourmentine.com/n/scripts/src/master/monitoring/check_rspamc) => Check rspamd status. Heavily based on [check_spamc](https://www.vanheusden.com/Linux/check_spamc-0.1.tgz).
   * [check_gemini.sh](https://forge.tourmentine.com/n/scripts/src/master/monitoring/check_gemini.sh) => Nagios/Icinga check for Gemini capsule availability. Requires gnutls for now (not tested with other tls clients).
+  * [check_lastdate.sh](https://forge.tourmentine.com/n/scripts/src/master/monitoring/check_lastdate.sh) => Check for a +%Y-%m-%d %H:%M:%S-formated date in the last two lines of a file.
   * [GonKyrellM](https://forge.tourmentine.com/n/scripts/src/master/monitoring/GonKyrellM) => Conky, GKrellM style - with "invisible" theme (well, sort of)
   * [collectweather.sh](https://forge.tourmentine.com/n/scripts/src/master/monitoring/collectweather.sh) => get weather data from https://darksky.net/ and feed collectd with it. needs jq as Dark Sky provides data in json format.
 
diff --git a/monitoring/check_lastdate.sh b/monitoring/check_lastdate.sh
new file mode 100755
index 0000000..9179efb
--- /dev/null
+++ b/monitoring/check_lastdate.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+
+# checks for a +%Y-%m-%d %H:%M:%S-formated date in the last two lines of a file
+
+# default values:
+# 60s*60m*4h
+warning=14400
+# 60s+60m*24h
+critical=86400 
+
+OPTIND=1
+
+while getopts "hF:C:W:" opt; do
+    case "$opt" in
+    h)
+	echo "Usage: $0 [-h] [-w warning (default: $warning)] [-c critical (default: $critical) -F <filename>]"	
+	exit 3
+	;;
+    W)
+	warning=$OPTARG
+	;;
+    C)
+	critical=$OPTARG
+	;;
+    F)
+	file=$OPTARG
+	;;
+    esac
+done
+
+shift $((OPTIND-1))
+
+[ "$1" = "--" ] && shift
+
+if [ -z ${file} ]
+then
+	echo "ERROR: please provide filename to parse with $0 -F <filename>"
+	exit 3
+fi
+
+lastdate=$(tail -2 ${file} | grep -o -E '^[[:digit:]]{4}-[[:digit:]]{2}-[[:digit:]]{2} [[:digit:]]{2}:[[:digit:]]{2}:[[:digit:]]{2}')
+lastts=$(date -d "${lastdate}" +%s)
+currentts=$(date +%s)
+
+if [ "x${lastts}" != "x" ]
+then
+	delay=$(echo "${currentts}-${lastts}" | bc)
+else
+	echo "UNKNOWN: date not found"
+	exit 3
+fi
+
+message=$(echo "${file} not updated since ${delay} seconds")
+
+if [ ${delay} -gt ${critical} ]
+then
+	echo "CRITICAL: ${message}"
+	exit 2
+elif [ ${delay} -gt ${warning} ]
+then
+	echo "WARNING: ${message}"
+	exit 1
+else
+	echo "OK: ${message}"
+	exit 0
+fi
+