Datadog Synthetics

Fully verifiable

Datadog Synthetic Monitoring probes that run customer-configured API and browser tests against endpoints. API tests send a "Datadog/Synthetics" User-Agent; browser tests append "DatadogSynthetics" to a browser UA. Datadog publishes probe IP ranges as a machine-readable feed at ip-ranges.datadoghq.com/synthetics.json.

Operated by Datadog · Official documentation

User agents

Patterns this directory matches, with real observed strings.

regexDatadog/Synthetics
regexDatadogSynthetics
observedDatadog/Synthetics
observedMozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0 DatadogSynthetics

How to verify

Fetch the official IP range feed

curl -s https://ip-ranges.datadoghq.com/synthetics.json

Fetch the official IP range feed

curl -s https://ip-ranges.datadoghq.com/synthetics.json

IP ranges (113)

Refreshed daily from the operator's feed. Also available as /data/ips/datadog-synthetics.ips and /data/bots/datadog-synthetics.json.

107.21.25.247/32
108.137.133.223/32
108.137.188.57/32
13.114.211.96/32
13.115.46.213/32
13.126.169.175/32
13.208.126.217/32
13.208.133.55/32
13.208.142.17/32
13.208.255.200/32
13.209.118.42/32
13.209.230.111/32
13.234.54.8/32
13.236.246.161/32
13.238.14.57/32
13.244.188.203/32
13.244.85.86/32
13.245.194.43/32
13.245.200.254/32
13.246.172.210/32
13.247.164.9/32
13.48.150.244/32
13.48.239.118/32
13.48.254.37/32
13.54.169.48/32
15.152.238.192/32
15.161.86.71/32
15.165.240.116/32
15.168.188.85/32
15.184.139.182/32
15.185.189.82/32
15.188.202.64/32
15.188.240.172/32
15.188.243.248/32
157.241.36.106/32
157.241.93.102/32
16.162.136.62/32
16.163.153.45/32
16.24.38.13/32
16.24.60.114/32
18.102.80.189/32
18.130.113.168/32
18.139.52.173/32
18.163.21.55/32
18.163.59.106/32
18.166.19.255/32
18.195.155.52/32
18.200.120.237/32
18.229.28.50/32
18.229.36.120/32
18.96.130.96/29
18.96.16.112/29
18.96.227.72/29
18.97.147.8/29
18.98.131.24/29
18.98.196.216/29
18.98.67.176/29
18.98.96.240/29
18.99.147.8/29
18.99.209.96/29
18.99.224.56/29
18.99.34.208/29
18.99.4.112/29
18.99.99.232/29
20.62.248.141/32
20.83.144.189/32
3.1.219.207/32
3.1.36.99/32
3.120.223.25/32
3.121.24.234/32
3.18.172.189/32
3.18.188.104/32
3.18.197.0/32
3.35.66.96/32
3.36.177.119/32
3.40.134.72/29
3.40.2.64/29
3.41.0.88/29
3.41.176.48/29
3.42.136.80/29
3.44.192.120/29
3.45.0.40/29
3.92.150.182/32
3.96.7.126/32
34.145.82.128/29
34.146.154.144/29
34.159.50.128/29
34.174.98.16/29
34.208.32.189/32
34.48.76.208/29
34.94.234.88/29
35.152.76.8/32
35.154.93.182/32
35.176.195.46/32
35.177.43.250/32
40.76.107.170/32
43.198.123.228/32
43.203.72.233/32
43.218.5.202/32
5.60.130.112/29
52.186.167.216/29
52.192.175.207/32
52.35.61.232/32
52.55.56.26/32
52.60.189.53/32
52.67.95.251/32
52.89.221.151/32
52.9.13.199/32
52.9.139.134/32
54.177.155.33/32
63.34.100.178/32
63.35.33.198/32
99.79.87.237/32

Good Bot Practices scorecard

Identifies honestly
Stable UA token documented (2 patterns)
Verifiable
Fully verifiable
Respects robots.txt
Service traffic you configured — robots.txt does not apply
Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
Reachable operator
Operator and documentation published

Measured against the Good Bot Practices.