csr.plus

What It Is

CSR.plus is an online CSR Generator for the SSL/TLS certificate application process. A CSR, or Certificate Signing Request, is encoded text submitted to a Certificate Authority (CA), containing a public key and organizational identity information. Based on the scraped content, the site primarily helps users enter details such as domain name, organization, email address, country, province/state, and city, then generate a CSR.

Core Features and Use Cases

The tool has a fairly focused core function: generating Certificate Signing Requests. Its form fields cover the common information needed for a CSR, including common name (domain), organization name, organizational unit, email, country, province/state, and city. It also supports adding SAN domains, which is useful when applying for multi-domain certificates or certificates with multiple Subject Alternative Names.

For key algorithms, the page offers RSA and ECDSA options, along with basic guidance: RSA has broader compatibility and is suitable when maximum browser and server compatibility is required; ECDSA is more modern, uses smaller keys, and offers better performance, making it better suited to new deployments or performance-sensitive environments. RSA key length options include 2048 and 4096 bits.

Pricing, Openness, and Integrations

The scraped text does not show any pricing information, nor does it state whether the service is free, has paid plans, or offers enterprise services. As a result, its business model cannot be determined. The page also does not disclose whether it is open source or closed source, and does not mention self-hosting options, APIs/SDKs, a CLI, browser extensions, or integrations with CAs/cloud platforms. For a developer tool, this means it appears more like a standalone web utility than a development platform that can be embedded into automated workflows.

Pros, Cons, and Who It’s For

Its strengths are a straightforward form-based interface and a single, clearly defined function, making it suitable for developers, webmasters, and operations teams who need to quickly generate a CSR before applying for an SSL certificate. Support for SANs and RSA/ECDSA selection also covers many common certificate application needs.

The main drawback is limited security transparency: the text does not explain how private keys are generated or stored, nor whether the private key ever leaves the user’s device. Because CSR generation typically involves private key generation, this is critical for production use. The documentation is also fairly brief: it explains what a CSR is and how to choose an algorithm, but lacks workflow examples, privacy details, and troubleshooting guidance.

China Access and Alternatives

Based on the available text alone, access from mainland China cannot be determined and should be marked as unknown; payment methods are also not disclosed. If private key security, offline use, or automation is a higher priority, alternatives include the OpenSSL command line, KeyStore Explorer, or CSR generation tools from DigiCert and SSL Shopper. Overall, CSR.plus is suitable for lightweight, temporary, manual CSR generation, but its private key handling should be confirmed before using it for production certificates.