{"id":3269,"date":"2026-07-22T08:20:44","date_gmt":"2026-07-22T08:20:44","guid":{"rendered":"https:\/\/certera.com\/kb\/?p=3269"},"modified":"2026-07-22T08:20:45","modified_gmt":"2026-07-22T08:20:45","slug":"how-to-use-acme-and-certbot-for-ssl-tls-certificate-automation","status":"publish","type":"post","link":"https:\/\/certera.com\/kb\/how-to-use-acme-and-certbot-for-ssl-tls-certificate-automation\/","title":{"rendered":"How to Use ACME and CertBot for SSL\/TLS Certificate Automation?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Three seconds. That\u2019s all it takes for a visitor to encounter a browser message, freak out, and never return.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nobody sticks around for \u201c<strong><a href=\"https:\/\/certera.com\/kb\/how-to-fix-your-connection-is-not-private-on-windows-and-mac\/\">Your connection is not private<\/a><\/strong>\u201c. They close the tab. They don\u2019t come back. And the worst part? It\u2019s not a new phishing attack or some other technical security problem. It was a forgotten renewal date.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This isn\u2019t rare. In fact, a recent one even hit Microsoft, preventing Teams from working and locking out thousands of users. If it happens to a company with security engineers, it\u2019s no surprise that a small, entrepreneurial team might forget.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Manually managing SSL is asking for trouble. You have a slew of CSRs (Certificate Signing Requests), expiries, CA (Certification Authority) portals, and server configs to deal with \u2013 all by hand, all the time, all across multiple domains. It\u2019s not a matter of if. It\u2019s when.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And that\u2019s why we have ACME. The&nbsp;<a href=\"https:\/\/certera.com\/blog\/what-is-acme-protocol-how-does-it-work\/\">Automated Certificate Management Environment protocol<\/a>&nbsp;defines how servers can request, verify, and renew certificates \u2013 automatically, securely, with no need for human intervention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>ACME\u2019s accomplice is Certbot<\/em><\/strong>. It\u2019s free, open source, and easy to use \u2013 and does all the hard work of managing your certificates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They transform managing SSL from a tedious task to automation you don\u2019t think about because it \u201cjust works\u201d.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A Little Bit of History of ACME<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The<strong>&nbsp;Automated Certificate Management Environment&nbsp;<\/strong>(ACME) protocol automates the management of the issuance and renewal of SSL\/TLS certificates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before ACME, each certificate request required&nbsp;<a href=\"https:\/\/certera.com\/blog\/manual-vs-automated-ssl-certificate-management-why-automation-is-must\/\">manual processes<\/a>&nbsp;such as key creation, domain verification, waiting for the CA to issue a certificate, and then manual configuration. ACME makes all those steps unnecessary.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ACME is standardised by the Internet Engineering Task Force (IETF) in RFC 8555 of 2019. This is important \u2013 it keeps any compliant ACME client compatible with any compliant Certificate Authority (CA) \u2013 not just Let\u2019s Encrypt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The process is simple:<\/strong>&nbsp;your ACME client (such as Certbot) communicates with a CA\u2019s ACME server. The client authenticates your domain. The CA issues the certificate. No human involvement required.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So, it\u2019s like OAuth for certs \u2013 a consistent process that eliminates the need for any paperwork.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ACME Building Blocks<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Five key components comprise ACME:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Account<\/strong>: Your identity with a CA and key pair.<\/li>\n\n\n\n<li><strong>Order<\/strong>: A request for a certificate for specific domains.<\/li>\n\n\n\n<li><strong>Authorisation<\/strong>: The CA\u2019s Signal that you need to demonstrate domain control.<\/li>\n\n\n\n<li><strong>Challenge<\/strong>: The way to prove. The ACME protocol supports HTTP-01, DNS-01, and TLS-ALPN-01 challenges.<\/li>\n\n\n\n<li><strong>Issuing Your Certificate<\/strong>: After challenges are resolved, your certificate is immediately signed and issued by the CA.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All steps are linear. Each is mandatory \u2013 if you miss one, it doesn\u2019t work.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ACME Certification Automation Under the Hood (The ACME Flow)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Demystifying the ACME flow. Here\u2019s what will occur when Certbot acquires a certificate on your behalf:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1. Account Registration:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot gets a key pair and sets up an account with the CA (e.g., Let\u2019s Encrypt). This happens once. Your public key is stored by the CA as your identity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2. Order Creation:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot asks for a certificate for your domain(s). The CA sends back authorisations to be completed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3. Challenge Request:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The CA sends a challenge \u2013 usually either HTTP-01 (put a token file somewhere on your site) or DNS-01 (set a TXT record in DNS). This demonstrates domain ownership.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4. Challenge Validation:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Automatic challenge by Certbot. The CA verifies it. Success or failure \u2013 nothing in between.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5. Certificate Issuance:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The CA successfully validates your certificate and issues it to you. No waiting. No email threads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 6. Installation:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot writes the certificate to your machine and restarts the web server. Done.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is Certbot, and why Does it Matter in 2026?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot is an open source ACME client that&nbsp;<a href=\"https:\/\/certera.com\/automated-ssl-certificates\">automates SSL\/TLS certificate management<\/a>&nbsp;(issuance and renewal) without user intervention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s developed by the&nbsp;<em>Electronic Frontier Foundation (EFF)<\/em>. It\u2019s not a one-person show. Certbot is developed, maintained and backed by well-established organisations, with years of experience serving millions of websites.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s primarily used with&nbsp;<em>Let\u2019s Encrypt<\/em>&nbsp;\u2013 the free, automated CA now used to secure more than 300 million websites. They make HTTPS available to all, not just those with money to pay security vendors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Three Reasons Why Certbot is so Popular:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Easy to Use:&nbsp;<\/strong>One command to issue a certificate on most Linux servers. No editing of configuration files.<\/li>\n\n\n\n<li><strong>Plugin Ecosystem:&nbsp;<\/strong>Apache, Nginx and DNS provider plugins automatically configure servers.<\/li>\n\n\n\n<li><strong>Renewal Automation:<\/strong>&nbsp;Certbot creates a cron job or systemd timer upon installation, which renews certificates before they expire \u2013 each 90-day cert has 60 days left when it renews.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What\u2019s Needed to Run Certbot<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before you install Certbot and run any commands, make sure you have the following four elements:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A domain name that resolves to your server\u2019s IP address. Domain ownership is verified \u2013&nbsp;<strong>localhost or unresolved hostnames won\u2019t work<\/strong>.<\/li>\n\n\n\n<li>An open firewall for&nbsp;<a href=\"https:\/\/certera.com\/blog\/port-80-http-vs-port-443-https-everything-to-know-about\/\">ports 80 and 443<\/a>. If you use the HTTP-01 challenge, you need port 80; HTTPS needs 443.<\/li>\n\n\n\n<li><strong>SSH access with sudo rights to your server<\/strong>. Many Certbot commands require sudo.<\/li>\n\n\n\n<li><strong>Familiarity with the command line<\/strong>&nbsp;\u2013 you don\u2019t need to be a Linux wizard to get by, but you need to know how to enter commands and read output.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Automate Certificates with Certbot?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Install Certbot<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Snap is the preferred installation \u2013 it automatically updates Certbot:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo snap install --classic certbot<\/em>\n<em>sudo ln -s \/snap\/bin\/certbot \/usr\/bin\/certbot<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Prefer apt? On Ubuntu\/Debian, run&nbsp;<strong>sudo apt install certbot<\/strong>. Snap is preferred in most production environments as it doesn\u2019t depend on your OS packages.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Get an SSL Certificate<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nginx or Apache plugin \u2013 fastest.&nbsp;<strong>Certbot makes it easy to automate setup:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot --nginx -d example.com -d www.example.com<\/em>\n<em>sudo certbot --apache -d example.com<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Webroot method (useful for manual config of server):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot certonly -w \/var\/www\/html -d example.com<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Wildcards&nbsp;<strong>\u2013 add as many -d flags<\/strong>&nbsp;as you want. It\u2019s free and works across multiple domains.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Domain Validation Methods<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot can use one of three methods of challenge \u2013 choose based on your server:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>HTTP-01:<\/strong>&nbsp;Puts a token file on&nbsp;<strong>http:\/\/yourdomain\/.well-known\/acme-challenge\/.<\/strong>&nbsp;Easiest, works on most setups. Requires port 80 to be open.<\/li>\n\n\n\n<li><strong>DNS-01<\/strong>: Creates a TXT record in your DNS zone. Ideal for wildcard certificates and behind firewalls.<\/li>\n\n\n\n<li><strong>TLS-ALPN-01:<\/strong>&nbsp;Challenge on port 443 with a special&nbsp;<a href=\"https:\/\/certera.com\/blog\/ssl-tls-handshake-a-crucial-step-towards-secure-connections\/\">TLS handshake<\/a>. Rarely used, for special proxies.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP-01 is the best for all newcomers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Automating Renewals<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Let\u2019s Encrypt certificates are valid for 90 days \u2013 on purpose, to be automated. Certbot sets up a systemd timer.&nbsp;<strong>Verify it\u2019s active:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo systemctl status snap.certbot.renew.timer<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dry run your renewal config (no changes to certificates):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot renew --dry-run<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Do this before you trust the new install. It\u2019s a good time to catch permission and other errors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Post-Renewal Hooks<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s not useful to renew a certificate if your web server isn\u2019t using it.&nbsp;<strong>Automatically reload with deploy hooks:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot renew --deploy-hook \"systemctl reload nginx\"<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Store scripts in&nbsp;<strong>\/etc\/letsencrypt\/renewal-hooks\/deploy\/<\/strong>&nbsp;to run them automatically every time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Advanced Automation Use Cases<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Wildcard Certificates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Keeping up with&nbsp;<strong>api.example.com<\/strong>,&nbsp;<strong>staging.example.com<\/strong>, and a new subdomain every sprint? Multiple certificates can be cumbersome.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A&nbsp;<a href=\"https:\/\/certera.com\/ssl-types\/wildcard-ssl-certificates\">wildcard certificate<\/a>&nbsp;(*.example.com) is issued across all subdomains: a single renewal, no costs per subdomain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The requirement:<\/strong>&nbsp;DNS-01 validation only, HTTP-01 can\u2019t validate uncreatable subdomains. For dynamic use cases, DNS-01 is not a workaround; it\u2019s the only scalable option.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS Automation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DNS-01 creates a conundrum:&nbsp;<\/strong>you automate certificates, but then every 90 days you have to log on to your DNS provider and enter a TXT record. This is \u201cslow\u201d manual work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DNS API plugins fix this.&nbsp;<strong>Certbot directly supports Cloudflare, Route 53, and DigitalOcean:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot certonly --dns-cloudflare \\<\/em>\n<em>--dns-cloudflare-credentials ~\/.secrets\/cloudflare.ini \\<\/em>\n<em>-d \"*.example.com\"<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The plugin sets and removes the TXT record. No DNS configuration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Multi-Server Environments<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot only stores certificates locally \u2013 no auto-deployment to load balancers, application nodes, or&nbsp;<a href=\"https:\/\/certera.com\/services\/content-delivery-network-cdn\">CDNs<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>We\u2019ve seen approaches that scale:<\/strong>&nbsp;NFS mounts for fewer servers, Vault or AWS Secrets Manager for medium-sized teams, cert-manager for Kubernetes. At scale, Certbot issues certs. Distributing is up to you.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Best Practices for Production Setup<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Dry Run on Staging<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Until now, Let\u2019s Encrypt rate limits have locked you out for hours. These tests will always be tested with staging first.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Monitor Independently<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Timers break. Hooks fail silently. Monitor with Uptime Kuma or Checkly and set up alerts 30 and 14 days before expiry.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lock Down Private Keys<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo chmod 700 \/etc\/letsencrypt\/live\/<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Root access only. A leaked private key is equivalent to a leaked database password.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Make Sure Renewals Work<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code><em>sudo certbot renew --dry-run<\/em><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Rerun after each server or renewal upgrade. Failure indications are silent until expiration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Challenges and Pitfalls<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are always common ways a good Certbot setup can fail.&nbsp;<strong>Here\u2019s what to watch for:<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Port Blocking:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP-01 challenge will silently fail when port 80 is blocked. If you\u2019re getting this error, check the port before you run Certbot.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><strong>On UFW:<\/strong> sudo ufw allow 80<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">DNS Failures:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DNS-01 challenges don\u2019t work if TXT records are not properly propagated. Make sure your changes have propagated with dnschecker.org before you validate. Skipping it uses up valuable rate limit quota.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Renewal Failures:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Systemd timers malfunction after OS upgrades and re-installs. Don\u2019t assume it\u2019ll work; run a dry run after all major changes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Deployment Gaps:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Your certificate gets automatically renewed, but your server is still serving the old certificate. This is a problem with (or lack of) deploy hooks.&nbsp;<strong>Make sure to check the new certificate with:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>openssl s_client -showcerts -connect example.com:443 &lt; \/dev\/null 2&gt;\/dev\/null | openssl x509 -noout -dates<\/em><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">ACME + Certbot: What they do (and do not)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot is mighty, but it\u2019s well targeted. This stops you from getting carried away.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>What it solves well:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Issuance:<\/strong>&nbsp;Obtain valid certificates from trusted CA\u2019s like Sectigo, DigiCert or Let\u2019s Encrypt in minutes, not days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Renewal:&nbsp;<\/strong>Automates the 90-day cycle, with no human intervention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Validation:<\/strong>&nbsp;Successfully demonstrates domain ownership using the HTTP-01 or DNS-01 challenges.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Where it stops short:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Clustered Deployment:<\/strong>&nbsp;Certbot doesn\u2019t cluster certificates. You\u2019ll need your own tools.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Monitoring:<\/strong>&nbsp;No notifications for renewals or expiry. Blind spots form fast in production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lifecycle Management:<\/strong>\u00a0Certbot doesn\u2019t support certificate revocation, policy enforcement, and audit logs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For single-host deployments, Certbot provides all you need. In an infrastructure as code environment, it\u2019s the issuance component \u2013 and it\u2019s up to you to build the rest of your process around it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s no secret that manual certificate management is a risk. Certificates can expire, flags can go up, and websites can go down \u2013 all in a truly avoidable manner.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/certera.com\/acme-certificates\/sectigo-acme-ssl\">ACME and Certbot<\/a>&nbsp;provide an out-of-the-box foundation. Free certificates, daily renewals, and consistent validation \u2013 all with little to no human intervention. That\u2019s more than sufficient for most single-node applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But automation isn\u2019t everything. Certificates expire. Timers fail. Hooks misconfigure. Without understanding your certificate\u2019s health, you won\u2019t know until it fails \u2013 usually in the middle of the night.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s not about automation. It\u2019s assured automation \u2013 when you know your certificates are good, you\u2019re renewing, and users never get warned.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Build the framework with Certbot. Then layer in oversight for true security.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Take Your SSL Automation Further<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot handles issuance. It doesn\u2019t handle visibility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you have production tasks to run, you don\u2019t just want certbot\u2019s automatic renewals; you want instant monitoring of the certificates, expiry notices, and instantaneous failure notification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Our SSL Monitoring Solution integrates with your existing Certbot deployments to fill the gap:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Expiry alerts<\/strong>&nbsp;at 30, 14, and 7 days \u2014 before users notice<\/li>\n\n\n\n<li><strong>Uptime monitoring<\/strong>&nbsp;based on certificate status<\/li>\n\n\n\n<li><strong>Real-time alerts<\/strong>&nbsp;via Slack, email, or PagerDuty if it doesn\u2019t work<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Certbot automates the work. We make sure it\u2019s actually working.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Three seconds. That\u2019s all it takes for a visitor to encounter a browser message, freak out, and never return. Nobody sticks around for \u201cYour connection is not private\u201c. They close the tab. They don\u2019t come back. And the worst part? It\u2019s not a new phishing attack or some other technical security problem. It was a<span class=\"morelink d-block mt-3\"><a href=\"https:\/\/certera.com\/kb\/how-to-use-acme-and-certbot-for-ssl-tls-certificate-automation\/\">Read More<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":3290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ACME &amp; Certbot: Automate SSL Installation &amp; Renewal<\/title>\n<meta name=\"description\" content=\"ollow a practical guide to SSL certificate automation with ACME and Certbot. 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