WAF Pricing Comparison 2026: Complete Cost Guide

Choosing a Web Application Firewall is as much a financial decision as a technical one. WAF pricing varies enormously between providers, and the cheapest option on paper can quickly become the most expensive once you factor in traffic volume, add-on features, and operational costs.

This guide breaks down the real-world costs of five major WAF providers in 2026, helping you understand not just the sticker price but the total cost of ownership. We will cover entry-level plans, scaling costs, hidden fees, and which provider offers the best value for different use cases.

Understanding WAF Pricing Models

Before comparing specific providers, it is important to understand the three main pricing models used in the WAF market:

• Flat-rate subscription: You pay a fixed monthly or annual fee regardless of traffic volume. Cloudflare and Sucuri use this model. It offers predictable costs but can be expensive for small sites or overly cheap for very large ones.
• Usage-based (pay-per-request): You pay based on the number of requests processed by the WAF. AWS WAF uses this model. It is economical for low-traffic sites but costs can spike during traffic surges or DDoS attacks.
• Custom enterprise pricing: Pricing is negotiated based on your specific requirements, traffic volume, and contract terms. Imperva and Fastly typically use this model for larger customers.

Provider-by-Provider Pricing Breakdown

Let us look at each provider in detail, covering their pricing tiers, what is included, and what costs extra.

Cloudflare Pricing Deep Dive

Cloudflare offers four tiers: Free, Pro ($20/month), Business ($200/month), and Enterprise (custom pricing). The Free plan includes basic WAF rules but lacks managed rulesets and advanced features. The Pro plan adds managed WAF rulesets, which is where real protection begins.

What is included in each tier:

• Free: Basic DDoS protection, 5 page rules, limited WAF rules, universal SSL
• Pro ($20/mo): Managed WAF rulesets, enhanced DDoS mitigation, image optimization, mobile optimization
• Business ($200/mo): Custom WAF rules, advanced DDoS, 100% uptime SLA, custom SSL certificates
• Enterprise (custom): Dedicated support, advanced bot management, custom solutions, SLA guarantees

Hidden costs to watch for: Bot Management ($30+/month add-on on lower tiers), Rate Limiting (usage-based charges on high-traffic sites), and Workers usage if you use edge computing features. Cloudflare's biggest advantage is pricing predictability. You know exactly what you will pay each month regardless of traffic spikes.

AWS WAF Pricing Deep Dive

AWS WAF uses a component-based pricing model that can be confusing at first. The core charges are: $5.00 per Web ACL per month, $1.00 per rule per month, and $0.60 per million requests. Additionally, if you use managed rule groups from the AWS Marketplace, those carry their own subscription fees (typically $20-$40 per month each).

Real-world cost examples:

• Small site (1M requests/month): 1 Web ACL ($5) + 10 rules ($10) + 1M requests ($0.60) = approximately $15.60/month
• Medium site (50M requests/month): 1 Web ACL ($5) + 20 rules ($20) + 50M requests ($30) + 2 managed rule groups ($60) = approximately $115/month
• Large site (500M requests/month): 2 Web ACLs ($10) + 50 rules ($50) + 500M requests ($300) + 4 managed rule groups ($140) = approximately $500/month

Hidden costs to watch for: AWS Shield Advanced ($3,000/month for DDoS protection), CloudFront data transfer charges, and the cost of engineering time to manage complex rule configurations. For a full head-to-head, see our Cloudflare vs AWS WAF comparison.

Sucuri Pricing Deep Dive

Sucuri offers some of the most affordable WAF protection on the market, especially considering that all plans include CDN, DDoS protection, and malware scanning. The Basic Firewall plan starts at $9.99/month and includes cloud-based WAF protection with virtual patching.

Pricing tiers:

• Basic Platform ($199.99/year): WAF + malware scanning + hack cleanup with 12-hour response time
• Pro Platform ($299.99/year): Everything in Basic + continuous malware scanning + 6-hour response time
• Business Platform ($499.99/year): Everything in Pro + 4-hour response time + advanced WAF features

Sucuri is the best value for small businesses that need WAF protection combined with malware cleanup services. The included hack repair guarantee alone can save thousands of dollars per incident.

Imperva Pricing Deep Dive

Imperva positions itself at the enterprise end of the market, and its pricing reflects that. Entry-level plans start around $400/month, and enterprise deployments can run into tens of thousands per month depending on the scope.

What justifies the higher cost:

• Industry-leading threat intelligence from Imperva Research Labs
• Advanced bot management with behavioral analysis and device fingerprinting
• Comprehensive API security that protects REST, GraphQL, and gRPC endpoints
• Detailed compliance reporting for PCI DSS, SOC 2, HIPAA, and GDPR

Imperva is typically not cost-effective for small or mid-market companies, but for enterprises processing sensitive data at scale, the investment is justified by the depth of protection and compliance support.

Wordfence Pricing Deep Dive

Wordfence takes a fundamentally different approach to pricing by charging per WordPress site rather than per request or per domain. Its free tier provides solid basic protection with firewall rules delayed by 30 days from the premium feed.

Pricing tiers:

• Free: Basic firewall, malware scanner, login security (rule updates delayed 30 days)
• Premium ($119/year): Real-time firewall rules, real-time malware signatures, IP blocklist, country blocking
• Care ($490/year): Everything in Premium + hands-on support, site monitoring, and incident response
• Response ($950/year): Everything in Care + 1-hour response time for security incidents

For WordPress sites, Wordfence offers the lowest entry point of any WAF provider. The free tier is genuinely useful, and the Premium tier at $119/year is a fraction of what cloud-based WAFs charge.

Cost Comparison by Traffic Volume

To give you a practical sense of how these costs compare, let us look at the monthly cost for a typical business website at different traffic levels.

Key takeaway: For low-traffic sites, AWS WAF and Wordfence offer the lowest costs. For medium to high-traffic sites, Cloudflare's flat-rate pricing becomes increasingly attractive because you are not penalized for traffic growth. Sucuri offers outstanding value at every level for sites that fit its target market.

Hidden Costs You Need to Consider

The sticker price of a WAF rarely tells the full story. Here are the hidden costs that can significantly impact your total cost of ownership:

• Engineering time: AWS WAF requires significantly more configuration and ongoing management than Cloudflare or Sucuri. Budget 5-10 hours per month for a properly managed AWS WAF deployment.
• False positive tuning: Every WAF generates false positives. The time spent investigating and tuning rules is a real cost. Cloud-managed WAFs like Cloudflare and Imperva generally require less tuning effort.
• Incident response: If your WAF misses an attack, the cost of a breach dwarfs any subscription fee. Consider the quality of protection, not just the price.
• Add-on features: Bot management, API protection, and DDoS mitigation are often separate charges. Cloudflare's Bot Management, for example, adds significant cost on lower tiers.
• Contract lock-in: Enterprise contracts often require annual commitments. Factor in the cost of switching if the WAF does not work out.

Use our WAF ROI Calculator to estimate your total cost of ownership across these providers, including hidden costs and engineering time.

Which WAF Offers the Best Value?

The answer depends on your situation:

• Best value for WordPress: Wordfence Free or Sucuri Basic. Both provide solid protection at minimal cost. See our guide to free WAF options.
• Best value for growing businesses: Cloudflare Pro at $20/month. The flat-rate pricing means you do not pay more as your traffic grows, and you get CDN and DDoS protection included.
• Best value for AWS users: AWS WAF is cost-effective if you already pay for CloudFront and have the engineering resources to manage it.
• Best value for enterprises: Imperva or Cloudflare Enterprise. At this scale, the value is in compliance support, dedicated engineering, and SLA guarantees.

Conclusion

WAF pricing in 2026 ranges from completely free (Wordfence, Cloudflare Free tier) to thousands of dollars per month (Imperva, Cloudflare Enterprise). The right choice is not simply the cheapest option. It is the one that provides adequate protection at a cost your organization can sustain long-term.

Start by calculating your expected traffic volume and required feature set, then use the comparison tables above to narrow your options. Remember to factor in engineering time, false positive tuning, and add-on features when calculating total cost of ownership. For small businesses watching every dollar, Sucuri and Wordfence are hard to beat. For teams that need enterprise-grade features, the investment in Cloudflare Business or Imperva will pay for itself in reduced security incidents.