Phirewall

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Rate Limiting

Fixed-window, sliding-window, and multi-window throttling with dynamic per-request limits.

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Bot Detection

Block known scanners, verify search engine bots via rDNS, and detect suspicious headers — each with a single method call.

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IP Blocking & Safelisting

Safelist and blocklist IPs and CIDR ranges. Pattern backends with file-backed persistence and automatic expiration.

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OWASP Rules

SQL injection, XSS, and PHP injection detection using OWASP CRS-style SecRule syntax.

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Fail2Ban & Allow2Ban

Ban clients after threshold violations. Signal failures from your application handler via RequestContext.

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PSR-15 Compatible

Works with any PSR-15 framework — Laravel, Symfony, Slim, TYPO3, Mezzio, and more.

Built by Flowd GmbH — Available for Your Next Project

Flowd GmbH (opens in new tab) is a highly specialized partner for custom application solutions. Since 2018, our team of experienced software engineers and IT consultants builds tailored software for mid-market companies and enterprises — efficient, stable, and with long-term support.

Enterprise CMS
Full-stack TYPO3 development, multi-site setups, brand platforms, CRM/PIM/DAM integrations, and long-term operations.

Custom Web Applications
Ruby on Rails & PHP applications for internal tools, process automation, data-driven apps, APIs, and scalable backends.

Architecture & IT Consulting
Technology decisions, system landscape design, security & compliance (eIDAS), deployment concepts, and infrastructure review.

Operations & Support
Hosting, monitoring, continuous development, and technical point of contact for your internal and external teams.

Security Engineering
Security assessments, compliance consulting, firewall integration, and the expertise behind Phirewall itself.

Trusted by Industry Leaders
Savencia, Paperless (eIDAS-certified signatures), and agencies across Germany trust our work.

Management = Developers. No overhead. Direct communication with senior engineers. Long-term partnerships, not one-off projects.

Let's talk about your project

[email protected]

PhirewallProtect your PHP application with a single middleware