diff --git a/dnsapi2.md b/dnsapi2.md
index e677926..6686cf7 100644
--- a/dnsapi2.md
+++ b/dnsapi2.md
@@ -107,6 +107,7 @@
 - [183. Use Edgecenter DNS API](#dns_edgecenter)
 - [184. Use EfficienIP DNS API](#dns_efficientip)
 - [185. Use WEXBO DNS API](#dns_wexbo)
+- [186. Use Wärner Technologie Services DNS-API](#dns_wts)
 - [Use custom API](#dns_myapi)
 - [Use lexicon DNS API](#dns_lexicon)
 
@@ -2744,6 +2745,24 @@ To issue a cert:
 
 Report any bugs or issues [here](https://github.com/acmesh-official/acme.sh/issues/6349)
 
+<a name="dns_wts"/>
+
+## 186. Use Wärner Technologie Services DNS-API
+
+Login to your [WTS](https://hosting.waerner-techservices.de) Account, follow the [link](https://hosting.waerner-techservices.de) to the Hosting-Controlpanel and copy your API Key from the domain-details page.
+
+```sh
+export WTS_API_Token="your_wts_domain_api_key"
+```
+
+To issue a cert, run command:
+
+```sh
+./acme.sh --issue --dns dns_wts -d example.com -d *.example.com
+```
+
+Report any bugs or issues [here](https://github.com/acmesh-official/acme.sh/issues/4419)
+
 <a name="dns_myapi"/>
 
 ## Use custom API