# WP Encryption > WordPress SSL Plugin ## Posts - [How to Add Free SSL Certificate to WordPress](https://wpencryption.com/free-ssl-wordpress/): Want to secure your WordPress website with HTTPS without paying for an SSL certificate? - [What is X-Frame-Options and How To Use It?](https://wpencryption.com/what-is-x-frame-options/): X-Frame-Options is a security HTTP response header that tells a browser whether it should be allowed to render a web page inside a , , or tag. - [Parse Error Reading JWS Error](https://wpencryption.com/parse-error-reading-jws/): When you run the SSL install form of WP Encryption, you might notice "parse error reading JWS" error in the debug log. - [Permit WordPress to Reload Apache2 Server Gracefully](https://wpencryption.com/permit-wordpress-to-reload-apache/): Whenever a new SSL certificate is generated by WP Encryption WordPress plugin, your Server must be restarted / reloaded once for newly created SSL certificate to load onto front-end site. - [Private Key Doesn't Appear To Be Valid on Google Cloud](https://wpencryption.com/private-key-invalid-on-google-cloud/): Once after you download the SSL certificate and private key files from WP Encryption WordPress plugin, If you're one of the Google Cloud user, you might receive "The private key you've selected does not appear to be valid" error while trying to upload the private key content. - [Restrict Private Key Access on Nginx Server](https://wpencryption.com/restrict-private-key-access-nginx/): It is obvious that your private key should never be exposed. Add a rule into nginx.conf file to secure your private key file. - [Fix ERR_SSL_VERSION_INTERFERENCE SSL Error on Chrome](https://wpencryption.com/err_ssl_version_interference/): A Possible cause of ERR_SSL_VERSION_INTERFERENCE error could be mismatch in TLS1.3 release version used by your web browser and your web server - [Fix Let's Encrypt "R3" Root Certificate Expired or SSL Not Trusted Issue](https://wpencryption.com/r3-root-expired-not-trusted/): Is your HTTPS site powered by Let's Encrypt SSL certificate showing INSECURE all of a sudden since September 30, 2021? - [ERR_CERT_AUTHORITY_INVALID | R3 Certificate is Expired](https://wpencryption.com/err_cert_authority_invalid/): "R3" root certificate of Let's Encrypt open certificate authority expired this week. Here's how to resolve the issue and restore padlock on your site. - [Secure Webmail & Email with an SSL/TLS Certificate](https://wpencryption.com/secure-webmail-with-https/): Your email clients started throwing invalid certificate error after SSL certificate installation for your domain? Let's secure webmail & email - [Make wp-config.php & .htaccess Writable in WordPress](https://wpencryption.com/make-htaccess-writable-wordpress/): In this step by step guide we will focus on how to make htaccess writable easily via File Manager or FTP for WordPress - [Fix ERR_SSL_PROTOCOL_ERROR for WordPress](https://wpencryption.com/err_ssl_protocol_error/): If you are one of Google Chrome lovers like Us :), you must have come around ERR_SSL_PROTOCOL_ERROR error at least once in a while. - [ERR_CERT_COMMON_NAME_INVALID fix for WordPress in 2021](https://wpencryption.com/err_cert_common_name_invalid/): Try testing your www & non-www domain and see if the ERR_CERT_COMMON_NAME_INVALID error is shown on only one of it. - [ERR_TOO_MANY_REDIRECTS WordPress Redirect Loop Fix](https://wpencryption.com/err_too_many_redirects/): Easily fix err_too_many_redirects SSL error of your WordPress site like a Pro! - [UNABLE_TO_VERIFY_LEAF_SIGNATURE Let's Encrypt](https://wpencryption.com/unable_to_verify_leaf_signature/): Resolving SSL related errors would be bit tricky for non-technical users and UNABLE_TO_VERIFY_LEAF_SIGNATURE is one of the common error - [Setup CRON Job to Restart Server Monthly Once](https://wpencryption.com/restart-server-via-cronjob/): This guide is focused towards step by step instructions on setting up a cron job on server to restart Apache/Nginx/Bitnami monthly once - [Trouble Installing SSL Certificate on Bluehost Site](https://wpencryption.com/bluehost-ssl-install/): You might be trying to install SSL on a temporary domain. Please change your temporary domain to a real domain name like wpencryption.com - [ERR_SSL_UNRECOGNIZED_NAME_ALERT - WordPress on Hostgator / Bluehost](https://wpencryption.com/err_ssl_unrecognized_name_alert/): Hostgator users might notice ERR_SSL_UNRECOGNIZED_NAME_ALERT error after successful SSL installation with WP Encryption Pro. Please follow below given instructions to get rid of the issue - [How to install SSL for OpenLightSpeed server - WordPress](https://wpencryption.com/install-ssl-for-openlightspeed-server/): Installing an SSL certificate generated with help of WP Encryption WordPress plugin on OpenLightSpeed server webadmin is super easy - [How to install SSL certificate for WordPress on WHM panel](https://wpencryption.com/install-ssl-on-whm-panel/): Generate SSL certificate easily with WP Encryption WordPress plugin and install it on your WHM panel following simple instructions. - [How to install SSL for WordPress on Nginx server](https://wpencryption.com/install-ssl-for-nginx-server/): Merge SSL cert files and update your Nginx virtualhost with correct SSL paths following our step by step tutorial. - [How to install SSL for WordPress on Apache server](https://wpencryption.com/install-ssl-for-apache-server/): Enable SSL module and install SSL for your Apache httpd or Apache2 server easily with step by step instructions - [Easy Install SSL for WordPress Multisite Mapped Domains](https://wpencryption.com/ssl-for-wordpress-multisite-mapped-domains/): Install free lets encrypt SSL for mapped domains of wordpress multisite network within minutes. step by step tutorial on apache SSL configuration - [How to Install SSL for AWS Lightsail Bitnami WordPress](https://wpencryption.com/ssl-for-lightsail-bitnami-wordpress/): Generate and install free Let's Encrypt SSL certificate for Bitnami WordPress or AWS Lightsail WordPress within seconds - [Compatibility between WP Encryption and SSL Zen](https://wpencryption.com/ssl-zen-and-wp-encryption/): SSL Zen WordPress plugin is compatible with WP Encryption free SSL plugin. This plugin have been tested thoroughly. - [Compatibility between Really Simple SSL and WP Encryption](https://wpencryption.com/reall-simple-ssl-and-wp-encryption/): Really Simple SSL is compatible with WP Encryption. This plugin have been tested thoroughly and you can use it to fix mixed content. ## Pages - [WP Encryption](https://wpencryption.com/wp-encryption-v2/): Install free SSL in one click, enforce HTTPS and security headers, and automate renewals and wildcard certificates across every WordPress site you run. - [Thank You](https://wpencryption.com/thank-you/) - [Pricing](https://wpencryption.com/pricing/): Upgrade to WP Encryption Pro - Save hundreds of $$$ every year in SSL certificate fee. - [Terms and Conditions](https://wpencryption.com/terms-and-conditions/): Your access to and use of WP Encryption website (“Website”,”We”,”Us”) and any digital product (“Product”) or service (“Service”) by WP Encryption is subject exclusively to these terms and conditions. - [My Account](https://wpencryption.com/my-account/) - [Cookie Policy](https://wpencryption.com/cookie-policy/) - [Sitelock Monitor Features](https://wpencryption.com/sitelock/) - [Introducing Cert Panel](https://wpencryption.com/introducing-wpencryption-certpanel/): Thank you for being a valued customer of WP Encryption. - [ChatGPT AI Content Writer WordPress Plugin](https://wpencryption.com/chatgpt-gpt3-wordpress-plugin/): GPT-3 by OpenAI is the new state-of-art natural language processing technology that every blog writer was waiting for and its finally here!. - [Hire WordPress SSL Expert](https://wpencryption.com/hire-ssl-expert/): Let one of our expert handle all the hassle of migrating your HTTP site to HTTPS safely and securely without any loss of Search Engine rankings and Social metrics including shares, likes & tweets count. - [Refund Policy](https://wpencryption.com/refund-policy/): At WP Encryption, we stand behind the quality of our plugin and want you to feel confident in your purchase. - [WP ENCRYPTION CDN](https://wpencryption.com/cdn-firewall/): All your site traffic is routed through StackPath Secure firewall offering security against DDOS attacks, SQL injection, XSS, CSRF, Brute force, Spam and common WordPress vulnerabilities. - [WordPress Mixed Content Scanner](https://wpencryption.com/mixed-content-scanner/): Wondering why the beautiful browser padlock is not showing on your site? - [DOCS](https://wpencryption.com/docs/) - [WordPress SSL Solution](https://wpencryption.com/): Install free SSL in one click, enforce HTTPS and security headers, and automate renewals and wildcard certificates across every WordPress site you run. 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