cloud-ip-ranges:~$

UptimeRobot logo UptimeRobot IP Ranges

Download current IP ranges (CIDRs) used by the UptimeRobot monitoring network.

Provider Information

Official Website
https://uptimerobot.com
Total IP Ranges
206
103 IPv4 · 103 IPv6
Last Updated
Total Downloads
9

Download Options

Choose your preferred format. All downloads are permalinks that always provide the latest data.

Download as TXT Download as CSV Download as JSON

IP Ranges

First 25 of 206 ranges. Download the full list above, or search for a specific IP.

CIDR Type
3.12.251.153/32 ipv4
3.20.63.178/32 ipv4
3.77.67.4/32 ipv4
3.79.134.69/32 ipv4
3.105.133.239/32 ipv4
3.105.190.221/32 ipv4
3.133.226.214/32 ipv4
3.149.57.90/32 ipv4
3.212.128.62/32 ipv4
5.161.61.238/32 ipv4
5.161.73.160/32 ipv4
5.161.75.7/32 ipv4
5.161.113.195/32 ipv4
5.161.117.52/32 ipv4
5.161.177.47/32 ipv4
5.161.194.92/32 ipv4
5.161.215.244/32 ipv4
5.223.43.32/32 ipv4
5.223.53.147/32 ipv4
5.223.57.22/32 ipv4
18.116.205.62/32 ipv4
18.180.208.214/32 ipv4
18.192.166.72/32 ipv4
18.193.252.127/32 ipv4
24.144.78.39/32 ipv4

Usage Examples - Blocking UptimeRobot IPs

Download the IP ranges

# Download with curl
curl -O https://cloud-ip-ranges.com/download/uptimerobot.txt

# Or download with wget
wget https://cloud-ip-ranges.com/download/uptimerobot.txt

Block with iptables (Linux firewall)

# Download and block UptimeRobot IPs with iptables
wget -O uptimerobot_ips.txt https://cloud-ip-ranges.com/download/uptimerobot.txt
while read ip; do
  iptables -A INPUT -s $ip -j DROP
  iptables -A OUTPUT -d $ip -j DROP
done < uptimerobot_ips.txt

Block with UFW (Ubuntu/Debian firewall)

# Download and block UptimeRobot IPs with UFW
wget -O uptimerobot_ips.txt https://cloud-ip-ranges.com/download/uptimerobot.txt
while read ip; do
  ufw deny from $ip
  ufw deny to $ip
done < uptimerobot_ips.txt

Block with fail2ban (intrusion prevention)

# Create fail2ban filter for UptimeRobot
sudo tee /etc/fail2ban/filter.d/uptimerobot-block.conf << EOF
[Definition]
failregex = ^.*$
ignoreregex =
EOF

# Create jail configuration
sudo tee /etc/fail2ban/jail.d/uptimerobot-block.conf << EOF
[uptimerobot-block]
enabled = true
filter = uptimerobot-block
action = iptables-allports[name=uptimerobot]
logpath = /tmp/uptimerobot_ips.txt
findtime = 1
bantime = -1
maxretry = 1
EOF

# Download IP list and restart fail2ban
wget -O /tmp/uptimerobot_ips.txt https://cloud-ip-ranges.com/download/uptimerobot.txt
sudo systemctl restart fail2ban

Block with pfSense/OPNsense (FreeBSD firewall)

# Create alias table for UptimeRobot IPs
# 1. Download the IP list
wget -O uptimerobot_ips.txt https://cloud-ip-ranges.com/download/uptimerobot.txt

# 2. In pfSense/OPNsense web interface:
# - Go to Firewall > Aliases
# - Create new alias named "UPTIMEROBOT_BLOCK"
# - Type: Network(s)
# - Import the downloaded file
#
# 3. Create firewall rule:
# - Go to Firewall > Rules > WAN
# - Add rule: Action=Block, Source=UPTIMEROBOT_BLOCK

About UptimeRobot IP Ranges

These are the addresses UptimeRobot's uptime checks run from, updated regularly from its official list. Most people allowlist them so monitoring isn't rate-limited or blocked by a WAF; the same list also lets you identify UptimeRobot probes in your access logs, or block monitoring you didn't ask for. Last update was about 2 months ago.

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