diff --git a/Dockerfile b/Dockerfile
index ae0bedc..c2d35a7 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -114,6 +114,7 @@ RUN \
     certbot-dns-dnsimple \
     certbot-dns-dnsmadeeasy \
     certbot-dns-dnspod \
+    certbot-dns-do \
     certbot-dns-domeneshop \
     certbot-dns-dynu \
     certbot-dns-google \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 0099bd8..acef2e0 100755
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -114,6 +114,7 @@ RUN \
     certbot-dns-dnsimple \
     certbot-dns-dnsmadeeasy \
     certbot-dns-dnspod \
+    certbot-dns-do \
     certbot-dns-domeneshop \
     certbot-dns-dynu \
     certbot-dns-google \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index ba78601..741e9e1 100755
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -115,6 +115,7 @@ RUN \
     certbot-dns-dnsmadeeasy \
     certbot-dns-dnspod \
     certbot-dns-domeneshop \
+    certbot-dns-do \
     certbot-dns-dynu \
     certbot-dns-google \
     certbot-dns-he \
diff --git a/readme-vars.yml b/readme-vars.yml
index 979b968..3b63448 100755
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -51,7 +51,7 @@ opt_param_usage_include_env: true
 opt_param_env_vars:
   - { env_var: "SUBDOMAINS", env_value: "www,", desc: "Subdomains you'd like the cert to cover (comma separated, no spaces) ie. `www,ftp,cloud`. For a wildcard cert, set this _exactly_ to `wildcard` (wildcard cert is available via `dns` and `duckdns` validation only)" }
   - { env_var: "CERTPROVIDER", env_value: "", desc: "Optionally define the cert provider. Set to `zerossl` for ZeroSSL certs (requires existing [ZeroSSL account](https://app.zerossl.com/signup) and the e-mail address entered in `EMAIL` env var). Otherwise defaults to Let's Encrypt." }
-  - { env_var: "DNSPLUGIN", env_value: "cloudflare", desc: "Required if `VALIDATION` is set to `dns`. Options are `acmedns`,`aliyun`, `azure`, `cloudflare`, `cloudxns`, `cpanel`, `desec`, `digitalocean`, `directadmin`, `dnsimple`, `dnsmadeeasy`, `dnspod`, `domeneshop`, `dynu`, `gandi`, `gehirn`, `google`, `he`, `hetzner`, `infomaniak`, `inwx`, `ionos`, `linode`, `loopia`, `luadns`, `netcup`, `njalla`, `nsone`, `ovh`, `rfc2136`, `route53`, `sakuracloud`, `standalone`, `transip` and `vultr`. Also need to enter the credentials into the corresponding ini (or json for some plugins) file under `/config/dns-conf`." }
+  - { env_var: "DNSPLUGIN", env_value: "cloudflare", desc: "Required if `VALIDATION` is set to `dns`. Options are `acmedns`,`aliyun`, `azure`, `cloudflare`, `cloudxns`, `cpanel`, `desec`, `digitalocean`, `directadmin`, `dnsimple`, `dnsmadeeasy`, `dnspod`, `do`, `domeneshop`, `dynu`, `gandi`, `gehirn`, `google`, `he`, `hetzner`, `infomaniak`, `inwx`, `ionos`, `linode`, `loopia`, `luadns`, `netcup`, `njalla`, `nsone`, `ovh`, `rfc2136`, `route53`, `sakuracloud`, `standalone`, `transip` and `vultr`. Also need to enter the credentials into the corresponding ini (or json for some plugins) file under `/config/dns-conf`." }
   - { env_var: "PROPAGATION", env_value: "", desc: "Optionally override (in seconds) the default propagation time for the dns plugins." }
   - { env_var: "DUCKDNSTOKEN", env_value: "", desc: "Required if `VALIDATION` is set to `duckdns`. Retrieve your token from https://www.duckdns.org" }
   - { env_var: "EMAIL", env_value: "", desc: "Optional e-mail address used for cert expiration notifications (Required for ZeroSSL)." }
@@ -155,6 +155,7 @@ app_setup_nginx_reverse_proxy_block: ""
 
 # changelog
 changelogs:
+  - { date: "22.09.22:", desc: "Added support for DO DNS validation." }
   - { date: "22.09.22:", desc: "Added certbot-dns-acmedns for DNS01 validation." }
   - { date: "20.08.22:", desc: "[Existing users should update:](https://github.com/linuxserver/docker-swag/blob/master/README.md#updating-configs) nginx.conf - Rebasing to alpine 3.15 with php8. Restructure nginx configs ([see changes announcement](https://info.linuxserver.io/issues/2022-08-20-nginx-base))." }
   - { date: "10.08.22:", desc: "Added support for Dynu DNS validation." }
diff --git a/root/defaults/dns-conf/do.ini b/root/defaults/dns-conf/do.ini
new file mode 100644
index 0000000..4a170b5
--- /dev/null
+++ b/root/defaults/dns-conf/do.ini
@@ -0,0 +1,3 @@
+# Instructions: https://github.com/georgeto/certbot-dns-do/blob/master/certbot_dns_do/__init__.py#L32
+# Replace with your values
+dns_do_api_token = YOUR_DO_LETSENCRYPT_API_KEY
diff --git a/root/etc/cont-init.d/50-certbot b/root/etc/cont-init.d/50-certbot
index 89a480e..f73968c 100644
--- a/root/etc/cont-init.d/50-certbot
+++ b/root/etc/cont-init.d/50-certbot
@@ -28,9 +28,10 @@ cp -n /defaults/dns-conf/* /config/dns-conf/
 chown -R abc:abc /config/dns-conf
 
 # check to make sure DNSPLUGIN is selected if dns validation is used
-if [[ "$VALIDATION" = "dns" ]] && [[ ! "$DNSPLUGIN" =~ ^(acmedns|aliyun|azure|cloudflare|cloudxns|cpanel|desec|digitalocean|directadmin|dnsimple|dnsmadeeasy|dnspod|domeneshop|dynu|gandi|gehirn|google|he|hetzner|infomaniak|inwx|ionos|linode|loopia|luadns|netcup|njalla|nsone|ovh|rfc2136|route53|sakuracloud|standalone|transip|vultr)$ ]]; then
+if [[ "$VALIDATION" = "dns" ]] && [[ ! "$DNSPLUGIN" =~ ^(acmedns|aliyun|azure|cloudflare|cloudxns|cpanel|desec|digitalocean|directadmin|dnsimple|dnsmadeeasy|dnspod|do|domeneshop|dynu|gandi|gehirn|google|he|hetzner|infomaniak|inwx|ionos|linode|loopia|luadns|netcup|njalla|nsone|ovh|rfc2136|route53|sakuracloud|standalone|transip|vultr)$ ]]; then
     echo "Please set the DNSPLUGIN variable to a valid plugin name. See docker info for more details."
     sleep infinity
+
 fi
 
 # create original config file if it doesn't exist, move non-hidden legacy file to hidden
@@ -139,7 +140,7 @@ if [ "$VALIDATION" = "dns" ]; then
     elif [[ "$DNSPLUGIN" =~ ^(google)$ ]]; then
         if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
         PREFCHAL="--dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.json ${PROPAGATIONPARAM}"
-    elif [[ "$DNSPLUGIN" =~ ^(aliyun|desec|dnspod|domeneshop|dynu|he|hetzner|infomaniak|inwx|ionos|loopia|netcup|njalla|transip|vultr)$ ]]; then
+    elif [[ "$DNSPLUGIN" =~ ^(aliyun|desec|dnspod|do|domeneshop|dynu|he|hetzner|infomaniak|inwx|ionos|loopia|netcup|njalla|transip|vultr)$ ]]; then
         if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
         PREFCHAL="-a dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini ${PROPAGATIONPARAM}"
     elif [[ "$DNSPLUGIN" =~ ^(standalone)$ ]]; then