Really Simple SSL vs Zero Spam for WordPress
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Really Simple SSL v9.8.3 · checked 23 Oct 2026 Free + paid · ★ 4.9/5 Visit Details | Zero Spam for WordPress v5.7.14 · checked 23 Oct 2026 Free + paid · ★ 4.1/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 3M+ | 20,000+ |
| Last updated | September 15, 2026 | October 23, 2026 |
| Editions | Really Simple Security · Really Simple Security Pro ($) | Zero Spam for WordPress |
| Pros | One-click HTTPS migration with 301 redirects; Hardening options such as XML-RPC and user enumeration; Email two-factor login for chosen roles in the free version | No captchas or moderation queues for visitors; Blocks IPs and countries from admin settings; Integrations for many form and commerce plugins |
| Cons | Captcha, authenticator 2FA, passkeys and firewall need Pro; Vulnerability checks send plugin and theme names to a remote service; Many settings screens to review after setup | Quota-limited Zero Spam API; upgrade is needed for higher volumes; Some lookups need your own IP service API keys; Sharing spam data with the vendor is an opt-in setting |
| Mentioned in our posts | 1 | 1 |
| Features (Security plugins checklist) | ||
| Firewall | Paid | — |
| Malware scan | No | — |
| Login protection | Yes | — |
| Two-factor login | Yes | — |
| Activity log | No | — |
| Free version | Yes | — |
| More features | ||
| Other features | One-click HTTPS migration and redirects, Vulnerability detection for plugins, themes and core, Email two-factor login for roles, WordPress hardening options, Authenticator app two-factor login ($), Captcha on login (reCAPTCHA or hCaptcha) ($) | Spam and bot blocking with no visitor captcha, Stop Forum Spam reputation lookup, Geolocation lookups with ipstack or ipinfo keys, REST API for network settings, Optional sharing of anonymous spam detections, Integrations for WPForms, Contact Form 7, Gravity Forms, Formidable and others, API usage monitoring and quota alerts |
| Integrations | ||
| Marketing | Really Simple Security mailing list | — |
| E-commerce | — | WooCommerce |
| Plugins | — | Gravity Forms, WPForms |
| Other | Cloudways API, SSL Labs, Really Simple Security vulnerability service, Google reCAPTCHA ($), hCaptcha ($) | Stop Forum Spam, ipstack, IPinfo, ipbase |
| Requires WordPress | 6.6 | 6.9 |
| Requires PHP | 7.4 | 8.2 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | Only if you agree |
| External services | api.cloudways.com, api.ssllabs.com | www.zerospam.org, api.stopforumspam.org, api.ipinfo.io, api.ipbase.com, api.ipstack.com |