Running an e-commerce platform requires constant vigilance against automated probes, SQL injection attempts, and malicious bots scanning for store vulnerabilities. To stop these cyber threats instantly, Ninja Labs has developed the most lightweight and advanced PrestaShop firewall available on the market. Our objective is straightforward: protecting your online business must never compromise your page loading speeds or disrupt legitimate UK shoppers, and our application-level WAF delivers robust defence while keeping your conversion rates fully optimised.
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The ultimate application-layer PrestaShop security module
Unlike heavy, intrusive security tools, our PrestaShop security module operates directly at the application layer to inspect incoming traffic before damage occurs. By hooking seamlessly into the actionDispatcher event, the firewall evaluates web requests prior to execution by your store’s core controllers. This lightweight architecture means you do not need to install background server agents, alter your PHP source code, or run resource-draining disk scans that slow down customer checkouts during high-traffic sales events.
Firewall for Prestashop
Performance and benchmark stats: zero-resource overhead defence
A primary concern when choosing to protect PrestaShop store environments is maintaining fast site speeds. Our PrestaShop WAF module utilises pre-compiled, cached regular expressions with a single preg_match pass per inspection category (URI, query, User-Agent, and referrer). Independent benchmark testing under PHP 8.1 demonstrates remarkable operational efficiency:
- Ultra-low latency averaging just ~0.002 ms per request for URI scanning and ~0.005 ms for bad bot detection.
- Zero database queries and zero disk writes on legitimate user visits, leveraging native PHP opcache.
- JSON payload inspection capped strictly at 64KB, stopping malicious payloads without exhausting RAM or CPU capacity.
- High-speed IP reputation matching using binary search across 3,900+ blacklisted IP ranges (FireHOL level1).
Frequently asked questions when securing your online shop
When deploying strict web application firewall rules, store owners often have practical questions regarding day-to-day operations and compatibility with payment gateways:
- Will the firewall break my checkout, payment processing, or customer logins? No. Critical features such as POST inspection (
NFW_SCAN_POST) and cookie scanning are disabled by default to prevent false positives during checkout. Furthermore, legitimate employee back-office sessions and login pathways are automatically exempt from 403 blocks. - Will this harm my SEO rankings or block legitimate search engines? Absolutely not. The module includes an automated whitelist for verified crawlers like Googlebot, Bingbot, SemrushBot, and AhrefsBot. User-initiated AI agents (such as ChatGPT-User or Perplexity-User) are also permitted so real shoppers browsing via AI assistants experience no disruption.
Cloudflare Radar integration and complete bot control
Malicious scraping and automated vulnerability scans account for a huge portion of wasted server bandwidth. To block PrestaShop attacks with maximum accuracy, our firewall integrates real-time intelligence feeds sourced from Cloudflare Radar alongside established bot directories. This live threat intelligence keeps your bad bot list updated against aggressive AI harvesters (including Bytespider, ClaudeBot, and AmazonBot). Through an intuitive admin dashboard, you can enable or disable individual bot rules or define custom allow/block lists with total precision.
Listado de bos por defecto a bloquear en Prestashop
Listado de bots encontrados por Cloudflare Radar listos para bloquear
Native 7G and 8G firewall rules to block advanced exploits
To deliver enterprise-grade security, we have natively ported and optimised the renowned 7G and 8G firewall ruleset (originally developed by Perishable Press) specifically for the PrestaShop ecosystem. These unified G7/G8 regex filters neutralise complex attack vectors, including cross-site scripting (XSS), SQL injection (SQLi), path traversal, and PHP configuration exploits. Threats are instantly dropped with an HTTP 403 Forbidden header and a Connection: Close signal, protecting your store without adding friction for genuine customers.
You can find more information about our module here. If you’d like a demo or to book a call, click the button and use our form:
