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Cybersecurity & Compliance

Web Application Firewall (WAF) Setup

Deployment and tuning of Web Application Firewall rules for your production apps — protection that blocks real attacks without breaking legitimate traffic or drowning you in false positives.

Get your WAF tuned properlyAll services
Overview

Deployed and tuned, not just switched on

A Web Application Firewall filters malicious traffic before it reaches your application, but an untuned WAF is either wide open or blocks your own users. We help you deploy and, just as importantly, tune a WAF so it delivers real protection. Work typically covers selecting or configuring the WAF for your stack (cloud-native, CDN-based, or self-hosted), enabling and tuning managed rule-sets against common attacks such as those in the OWASP Top 10, and adding custom rules and rate limits for your application's specific abuse cases. We run rules in monitoring mode first to measure false positives against real traffic, then move to blocking with confidence. We also set up logging and alerting so your team can see what the WAF is stopping. The result is a WAF that reduces risk on day one and keeps doing so as your traffic evolves — not a switch flipped and forgotten.

What’s included

  • WAF selection and configuration for your stack
  • Managed rule-set tuning against OWASP-class attacks
  • Custom rules and rate limits for app-specific abuse
  • Monitor-then-block rollout to control false positives
  • Logging and alerting setup
Who it's for

Teams stuck between wide open and locked out

  • SaaS and e-commerce teams exposing production applications to the internet without a tuned edge protection layer.
  • Engineering teams who enabled a cloud WAF, hit false positives that broke real users, and left it in monitoring mode.
  • Companies facing a compliance or customer requirement to place a web application firewall in front of a public application.
  • Product teams dealing with credential stuffing, scraping or checkout abuse that generic managed rule-sets do not address.
When you need it

When an untuned WAF becomes a liability

  • A penetration test or compliance review recommends a WAF in front of an application that currently has none.
  • The WAF blocks legitimate traffic such as file uploads or rich-text submissions, so the team disabled the offending rules wholesale.
  • You are migrating to a new CDN or cloud provider and need the WAF policy rebuilt rather than copied blindly.
  • Login endpoints face credential stuffing and the application needs targeted rate limiting and bot controls at the edge.
  • A newly disclosed vulnerability needs a virtual patch at the edge while the underlying code fix is developed and released.
Deliverables

What you get once the WAF is live

Every engagement ends with something your team can act on — not a slide deck.

  • A configured WAF policy with tuned managed rule-sets and documented custom rules.
  • A false-positive analysis from monitoring mode against your real traffic, with the exclusions it justified.
  • Rate-limiting and bot-control rules for your application's specific abuse cases.
  • Logging and alerting configuration so blocked and suspicious traffic is visible to your team.
  • A runbook covering rule changes, exception handling and how to respond when the WAF blocks a legitimate user.
How it works

Monitor first, then block with confidence

The same predictable shape whether the work is an assessment or a build, so you always know what happens next.

  1. 1

    Discover

    We start by understanding your systems, goals, and constraints — scope, risk tolerance, and what success looks like — so the work is aimed at your actual problem, not a generic template.

  2. 2

    Assess or build

    For security work, we test and analyse against recognised standards. For development, we build in small, reviewable increments. Either way, you see progress early and can change direction.

  3. 3

    Report or ship

    You get clear, prioritised deliverables — a report your engineers can act on, or working software shipped to your environment — with the context to understand what was done and why.

  4. 4

    Support

    We stay available after delivery: retesting fixes, iterating on the product, and answering the questions that come up once real users and real traffic arrive.

FAQ

WAF Setup — common questions

Does a WAF replace fixing the vulnerabilities in our code?

No. A WAF reduces exposure and buys time, but it filters traffic patterns rather than removing the underlying flaw. Business-logic and authorisation vulnerabilities in particular are largely invisible to a WAF because the requests look legitimate. We treat it as one layer: valuable for blocking commodity attacks, absorbing scanning noise and virtually patching a known issue while a code fix ships, but never as a substitute for secure development and testing.

Will the WAF block our legitimate users?

Not if it is tuned before it enforces. We deploy rules in monitoring mode first and measure what they would have blocked against your real production traffic, which surfaces the false positives that typically come from file uploads, rich-text editors, API clients and integrations. Only once those exclusions are justified and documented do we move rules into blocking. We also leave you a runbook for handling exceptions after we hand over.

Which WAF platforms do you work with?

We work with cloud-native and CDN-based web application firewalls from the major providers, as well as self-hosted options. The right choice usually follows your existing stack: where your traffic already terminates, what your team can operate, and what your compliance obligations require. If you have not chosen yet, we help you select based on those constraints rather than defaulting to any one vendor.

Can you manage the WAF for us after setup?

We can support you after the initial deployment, and we scope that separately from the setup work. Traffic patterns change, applications add endpoints, and managed rule-sets update, so a WAF needs periodic review to stay useful. Some clients take full ownership using the runbook we hand over; others prefer scheduled tuning reviews. We are happy either way, and we will make sure your team can operate it independently if that is the goal.
Related services

Layer this with

Teams that come to Safe Tech AI for waf setup frequently need these too.

  • Web Application Security Testing

    Deep testing of your web applications against OWASP-class risks — injection, broken access control, authentication flaws, and more — with findings mapped to how your app actually works, not a generic checklist.

    Learn more

  • Firewall Audit

    A rule-base review that finds overly permissive, redundant, and risky firewall rules — the misconfigurations that quietly widen your attack surface as rule-sets grow over years.

    Learn more

  • API Security Testing

    Testing REST, GraphQL, and internal APIs for authentication, authorization, injection, and abuse risks — the layer that powers your apps and integrations but is easy to expose by accident.

    Learn more

An untuned WAF protects nobody.

We run rules in monitoring mode against your real traffic first, then move to blocking with a runbook so your team can own it going forward.

Get your WAF tuned properly