📄️ "Browser shows insecure warning after SSL certificate installation"
"This guide provides CA-validated standard resolution solutions for several common types of security alerts that occur frequently after SSL certificate deployment, helping users quickly resolve the issue where the browser still shows an insecure warning after SSL certificate installation"
📄️ After installing a new certificate, the browser still displays the old certificate
This guide provides a standardized resolution verified by Certificate Authorities (CA) for the issue where the browser still displays the old SSL certificate after the new SSL certificate is installed and deployed, helping users quickly resolve the problem of the browser displaying the old SSL certificate
📄️ Security Seal Installation Guide
Before installing and deploying a security seal, you need to apply for an OV or EV certificate on the Racent platform. After that, you can download the seal for this certificate on the order details page. The downloaded seal is a piece of code; simply place this code on the web page where you want the seal to be displayed.
📄️ How to Check the Server Type
This article describes how to check the server type. You can use browser developer tools or the command line tool curl to check the Web server type, and provides detailed step-by-step instructions with screenshots for the specific operation process.
📄️ Can a Single-Domain Certificate Be Installed on Multiple Servers
This article answers the question of whether a single-domain certificate can be installed on multiple servers. As long as all these servers use the same domain name, a single-domain certificate can be installed on multiple servers, for example in load balancing scenarios, multi-server deployments and other cases
📄️ How Many SSL Certificates Can Be Installed on One Server
This article answers the question of how many SSL certificates can be installed on one server: there is theoretically no upper limit in SNI mode, while the number is limited by the server's IP count for IP-based SSL. Common scenarios such as multi-domain hosting, testing and development, and hybrid deployment support installing multiple certificates on a single server.
📄️ How to Fix Incomplete SSL Certificate Chain Issues on Websites
This article addresses common certificate chain integrity issues during SSL certificate deployment, analyzes typical failure scenarios such as missing intermediate certificates and configuration errors, and provides standardized solutions for mainstream servers including Apache/IIS and third-party platforms. It covers certificate chain file configuration specifications, multi-environment upload guides, and verification methods, helping operation and maintenance personnel quickly locate and resolve certificate chain anomalies.
📄️ How to Configure an Intranet IP SSL Certificate
This article provides detailed instructions on how to configure an intranet IP SSL certificate, including illustrated tutorials for configuring the intranet IP certificate on the server side and importing the IP root certificate on the client side, to help users quickly enable HTTPS-encrypted secure access to intranet IP addresses and eliminate insecure warnings.
📄️ How to Redirect HTTP to HTTPS on a Website with an SSL Certificate Installed
Racent provides a cross-platform HTTP-to-HTTPS forced redirect configuration guide, covering detailed steps for Nginx/Apache/Tomcat/IIS servers, plus SSL detection tools and common troubleshooting solutions
📄️ Do I Need to Install Both Guomi (SM cryptography) Certificates and International Certificates?
sslTrus provides a collaborative deployment solution for Guomi (SM cryptography) SSL certificates and international SSL certificates. Depending on customer requirements, you can install a single certificate type, or install both Guomi (SM cryptography) and international certificates as a dual-certificate setup.
📄️ Do I need to modify program code to install a certificate?
Installing an SSL certificate does not require modifying program code.
📄️ How to Install Certificates on Alibaba Cloud and Tencent Cloud Servers
A detailed guide to installing SSL certificates in Nginx, Tomcat, IIS, Apache, and other environments on Alibaba Cloud and Tencent Cloud servers, including certificate format conversion and port 443 detection methods.
📄️ NET::ERR_CERT_AUTHORITY_INVALID Prompt After Certificate Installation
ERR_CERT_AUTHORITY_INVALID (invalid Certificate Authority/untrusted certificate) is a common browser SSL certificate error. Frequent causes include incomplete certificate chain, certificate revocation, OCSP validation failure, outdated local root certificate store, incorrect system time, and network interception or tampering. This article provides complete troubleshooting and resolution solutions.
📄️ DNS resolution value change for Sectigo certificate reissuance in the second year
After reissuing Sectigo series SSL certificates, the DNS resolution value for the second year will have an additional segment compared to the first year, and the validation record needs to be reconfigured.
📄️ CA Verification Department Phone Numbers
Incoming phone numbers of various CA verification departments: Sectigo uses numbers such as the US number +1 908 800 0434; DigiCert calls usually start with +61 or 0061; GlobalSign calls from random Philippine numbers starting with +63 or 021 Shanghai landline numbers.
📄️ Reasons Why SSL Certificates Do Not Take Effect After Installation
The most common reason for an SSL certificate not taking effect after deployment is incorrect deployment location. Certificates must be installed and synchronized for update on front-end proxy devices such as CDN, WAF, and load balancers; replacing certificates only on the origin server will not take effect.
📄️ Sectigo New Root Certificate Untrust Issue and Cross-Root Solution
The new Sectigo root certificate R46 is not pre-installed in the root certificate store of legacy devices. Deploying only the new root and intermediate certificates is not sufficient for compatibility with legacy devices; you must additionally configure the cross-root certificate USERTrust RSA Certification Authority to establish the trust chain.
📄️ "Unsupported protocol" prompt for Guomi (SM cryptography) SSL certificates
The "Unsupported protocol" browser prompt after installing a Guomi (SM cryptography) SSL certificate usually occurs because the browser does not support Guomi algorithms, or the server is not correctly configured with dual certificates. We recommend using a Guomi-compatible client such as the Qianxin Trusted Browser, and deploying both Guomi and RSA dual certificates at the same time.
📄️ Nginx startup error SSL_CTX_use_certificate_failed with Guomi certificate
The Nginx startup error SSL_CTX_use_certificate failed after configuring a Guomi certificate occurs because the underlying OpenSSL library of the current middleware does not support Guomi algorithms. Standard OpenSSL cannot recognize the Guomi certificate format, so you need to compile the Guomi version of OpenSSL.
📄️ Can an SSL certificate be installed on multiple servers?
Can one certificate be installed on multiple servers? Absolutely. Certificates are not bound to hardware, and you can copy and deploy them to any number of servers.