Azure WAF blocks web attacks on your Azure infrastructure — PageGuard monitors what users actually experience: accessibility compliance, Core Web Vitals, and SEO health.
Scan Your Website Free →💡 Tip: Use both — Azure WAF for infrastructure security, PageGuard for front-end quality and ADA compliance. They solve entirely different problems.
PageGuard vs Azure WAF — what each tool actually does
| Feature | PageGuard | Azure WAF |
|---|---|---|
| What is it? | External website health monitor — scans any deployed URL for performance, accessibility, SEO, and best practices | Azure Web Application Firewall (Azure WAF) is a Microsoft cloud-native WAF service that protects web applications hosted on Azure Application Gateway, Azure Front Door, and Azure CDN from common web exploits and vulnerabilities; Azure WAF uses the OWASP Core Rule Set (CRS 3.1, 3.2) and Microsoft Threat Intelligence rules to block SQL injection, cross-site scripting (XSS), remote file inclusion (RFI), local file inclusion (LFI), HTTP protocol violations, and other OWASP Top 10 attacks; Azure WAF supports custom WAF policies, IP-based access control, rate limiting, bot protection managed rule set, and geo-filtering; Azure WAF integrates with Azure Monitor, Azure Sentinel, Microsoft Defender for Cloud, and Azure Policy for centralized governance; Azure WAF has no WCAG accessibility auditing, Core Web Vitals measurement, or SEO checking capability |
| Free tier | Yes — unlimited one-off scans, no signup required | No free tier — Azure WAF is priced per policy ($25/month per policy), per WAF rule group ($0.40/hour per 10 rules), per processing unit ($0.035 per hour for Application Gateway WAF_v2 tier), and per data processed ($0.008/GB); a typical Azure WAF deployment on Application Gateway WAF_v2 costs $150–$500/month depending on traffic and instance count; Azure Front Door WAF is separate pricing starting at $0.0005 per 1,000 requests beyond the first 10M; none of Azure WAF's pricing tiers include accessibility auditing, Core Web Vitals scoring, or technical SEO analysis |
| Accessibility audit (WCAG / ADA) | Yes — WCAG 2.1 AA scored 0–100 with specific issue list | No — Azure WAF is a security firewall with no WCAG compliance checking capability; Azure WAF inspects HTTP request headers, URI paths, query strings, and request bodies for attack signatures at the network/application layer — it does not analyze the HTML content returned to users for accessibility compliance; a site fully protected by Azure WAF can still fail WCAG 2.1 AA with missing alt text (WCAG 1.1.1), insufficient color contrast (WCAG 1.4.3), broken keyboard navigation (WCAG 2.1.1), missing form labels (WCAG 1.3.1), and missing ARIA attributes — none of these are detectable by Azure WAF's inspection engine |
| Core Web Vitals | Yes — LCP, CLS, FCP, TBT, Speed Index, TTI measured per scan | No — Azure WAF does not measure or expose Core Web Vitals; Azure WAF's diagnostic logs in Azure Monitor track WAF rule matches, blocked requests, request sizes, and policy enforcement outcomes — there is no LCP, CLS, FCP, or Lighthouse-equivalent performance metric; enabling Azure WAF on Application Gateway can add routing latency (typically 1–5ms for WAF processing), but Azure WAF provides no dashboard verifying whether LCP meets the 2.5-second threshold or whether CLS is below 0.1; without these measurements you cannot detect if WAF processing latency is impacting Core Web Vitals scores |
| SEO audit | Yes — meta tags, Open Graph, canonical URLs, structured data, hreflang, robots.txt compliance checked | No — Azure WAF does not perform SEO audits; a specific risk is that Azure WAF custom rules or CRS rule matches can return 403 Forbidden responses to Googlebot and Bingbot if their IP ranges are misidentified as threats; Azure WAF bot protection managed rule set categorizes bots but custom rules may inadvertently affect legitimate crawlers; Azure WAF does not audit meta title length, canonical URL correctness, structured data validity, hreflang implementation, or Open Graph completeness; PageGuard checks SEO health on every scan including signals that indicate crawlability issues after WAF deployments |
| Performance score (0–100) | Yes — Lighthouse-powered composite score updated on every scan | No — Azure WAF provides no Lighthouse-style performance score; Azure Monitor metrics for Azure WAF include TotalRequests, BlockedRequests, HealthyHostCount, and WAF capacity unit utilization — it does not provide a 0–100 performance score, Time to Interactive, First Contentful Paint, or Lighthouse audit category breakdown |
| Best practices check | Yes — HTTPS, HTTP/2, deprecated APIs, console errors, safe browsing flagged | Partial — Azure WAF enforces HTTPS redirect policies when configured on Application Gateway or Front Door, and the managed bot protection rule set helps block malicious automated traffic; however Azure WAF does not report on deprecated JavaScript APIs, browser console errors, HTTP/2 adoption (configured at Application Gateway level separately), mixed content warnings in HTML, or Lighthouse Best Practices audit items |
| Web Application Firewall (WAF) | No — PageGuard is a monitoring tool, not a security layer | Yes — Azure WAF is a fully managed WAF natively integrated into the Azure platform; OWASP Core Rule Set (CRS) 3.1 and 3.2 provide out-of-the-box protection against SQLi, XSS, RCE, and protocol anomalies; custom WAF policies support string matching, regex patterns, IP groups, geo-filtering, and rate limiting; Azure Front Door WAF supports global policies with per-endpoint overrides; the Azure WAF bot protection managed rule set classifies good bots (verified search engines), bad bots (scrapers, vulnerability scanners), and unknown bots; WAF logs integrate with Azure Sentinel for SIEM correlation and Microsoft Defender for Cloud for unified security posture |
| DDoS protection | No | Partial — Azure WAF rate limiting rules mitigate application-layer (L7) request floods from individual IP sources; volumetric DDoS protection (L3/L4) requires Azure DDoS Protection Standard ($2,944/month for a protected network) or the Basic DDoS protection included free with all Azure virtual networks; Azure Front Door with Azure WAF provides distributed edge-level protection that can absorb larger traffic volumes across Microsoft's global network; Azure Defender for Azure WAF (part of Defender for Cloud) provides threat intelligence overlays on WAF activity |
| Azure ecosystem integration | No — PageGuard is a standalone external scanner, not an Azure service | Yes — Azure WAF is deeply integrated with the Azure ecosystem: deploys natively on Application Gateway WAF_v2, Azure Front Door Premium, and Azure CDN from Microsoft; centrally managed via Azure Policy across subscriptions using Azure Firewall Manager; diagnostic logs stream to Azure Monitor Log Analytics, Azure Storage, and Azure Event Hubs for SIEM integration; integrates with Microsoft Defender for Cloud for security posture scoring and regulatory compliance reporting; supports Azure Active Directory RBAC for policy management; WAF rules can reference Azure IP Groups for simplified network topology management |
| OWASP Core Rule Set (CRS) | No — PageGuard does not apply WAF rule sets | Yes — Azure WAF supports OWASP CRS 3.1 and 3.2 with configurable detection mode (logging only) and prevention mode (block + log); rule groups cover SQL injection (942+), XSS (941+), PHP injection (933+), NodeJS attacks (934+), Java attacks (944+), HTTP protocol enforcement (920+), scanner detection (913+), and local/remote file inclusion (930+, 931+); individual rules can be disabled to reduce false positives while keeping broader rule groups active; custom rules take precedence over CRS rules and support complex match conditions with multiple predicates |
| Googlebot crawlability risk | PageGuard SEO audit checks crawlability signals and robots.txt compliance to detect indexation issues | Risk — Azure WAF CRS rules and custom policies can inadvertently return 403 responses to Googlebot; Azure WAF bot protection rule set maintains a list of verified good bots including Googlebot, but CRS SQL injection or XSS rules can sometimes fire on benign query strings used in structured data markup or search parameter URLs; Azure WAF does not alert when Googlebot access rate drops or when 403 responses spike for bot traffic — PageGuard SEO monitoring can surface unexpected crawlability degradation after WAF rule changes or CRS upgrades |
| ADA compliance alerts | Yes — automated alerts when accessibility score drops below threshold; ADA Title II urgency tracking | No — Azure WAF has no capability to monitor WCAG accessibility score changes or alert on ADA compliance degradation; Azure Monitor WAF alerts cover security events such as blocked request spikes, rule match rate anomalies, and gateway health — it cannot detect accessibility regressions caused by CMS updates, template changes, or new content introducing alt text omissions or ARIA errors |
| Primary use case | Monitor and improve website quality — accessibility compliance, performance, SEO health, best practices | Protect Azure-hosted web applications and APIs from OWASP Top 10 attacks, SQL injection, XSS, bad bots, and protocol violations with OWASP CRS and Microsoft Threat Intelligence rules integrated into the Azure platform |
Free WCAG audit, Core Web Vitals, SEO check — no signup needed. See your score in 30 seconds.
Works on any website — WordPress, Shopify, Next.js, custom builds