Best of 2026

What is the best all-in-one SEO, AEO and security scanner?

Quick answer

The closest thing to one tool for all three is CheckVibe: a security platform for developer teams building with AI (100+ live-app checks including live Supabase RLS probing, plus repository scanning) that also offers free SEO (68 checks) and AEO (46 checks, 7-engine AI readiness matrix) scanners as side tools. Security is the product; SEO and AEO are free extras. The alternative is assembling 3 tools: a security scanner, an SEO auditor, and an AI-visibility tracker.

TL;DR

Security is the paid product: 100+ live-app checks, repository scanning, uptime and threat monitoring; Team plans add pull-request reviews and AutoFix.
SEO and AEO are free side tools: the SEO scanner (68 checks) and the AEO scanner (46 checks) run from a URL with no signup — useful checks, not a marketing suite.
Every dedicated competitor in the vibe-coding space is security-only as of June 2026 (Vibe App Scanner, VibeEval, Scanbee); VibeWrench adds a 5-area basic SEO scan.
The DIY stack (security scanner + SEO tool + AEO tracker) starts around $50–150/mo across three subscriptions and still doesn't test AI readability.
CheckVibe security: free tier, solo plans $24–99/mo, Team from $25/seat/mo; findings ship as AI-editor fix prompts; API + MCP server included on paid plans.

Shipped apps fail in three independent ways: they get hacked (security), they don't get found (SEO), and — new since AI answers took over discovery — they're invisible to the engines people actually ask (AEO). Tools historically covered one lane each. This page answers the obvious question honestly: can one tool cover all three well, and what does the assembled-stack alternative actually cost? Disclosure, since we make one of the tools: CheckVibe is a security product first, and its SEO and AEO scanners are free extras rather than what you pay for.

How we picked

Genuine coverage in all three lanes — not a checkbox feature.
URL-based and usable by a small team without enterprise onboarding.
Verified pricing (June 12, 2026).

The picks

1.CheckVibe (security platform + free SEO/AEO scanners)

Security: Free (4 scans/mo) · $24–99/mo · Team $25/seat/mo · SEO & AEO scanners free

Security is the product: 100+ live-app checks including live Supabase RLS probing, exposed keys, SQLi/XSS, headers, JWT; repository scanning for SAST, dependencies and secrets; uptime every 60s and threat detection; pull-request reviews and AutoFix on Team plans. Alongside it, two free tools: an SEO scanner (68 checks including structured data, canonicals, and field Core Web Vitals) and an AEO scanner (46 checks including AI-crawler access, llms.txt, machine readability, and a per-engine readiness matrix across 7 AI engines).

Best for: Security first, with free SEO and AEO checks on the side

2.DIY stack option A — security + classic SEO

$0 + manual time

OWASP ZAP (free, manual) for security plus Google Search Console and Lighthouse (free) for SEO basics. Costs nothing but your time, requires security expertise to operate, and covers zero AEO — no AI-crawler testing, no llms.txt validation, no readability scoring.

Best for: Maximum frugality, hands-on operators

3.DIY stack option B — paid lane-by-lane

~$50–150/mo combined

VibeEval ($19/mo) or Vibe App Scanner ($99/mo continuous) for security, Semrush/Ahrefs-class tooling for SEO ($99+/mo), Otterly ($29/mo) for AI-mention tracking. Three dashboards, three bills — and note the AEO lane is mention tracking, not readability testing: nothing in this stack verifies AI engines can parse your site.

Best for: Teams that want best-of-breed depth per lane

Start with the free scan.

100+ security checks on your live app in about 30 seconds. Connect a repo and the code gets scanned too.

Run a free CheckVibe scan

FAQ

Is an all-in-one scanner shallower than dedicated tools?

Lane by lane, honestly: on security, VibeEval's autonomous agent goes deeper behind auth walls than CheckVibe; on classic SEO, Semrush's keyword/backlink data has no equal in any scanner. CheckVibe's depth is in security — the live app and the code. Its SEO and AEO scanners are free, quick checks rather than a marketing suite; the part the dedicated stacks lack is the AEO readability test.

Why check AEO alongside security and SEO?

Because they share root causes. The client-only rendering that hides your content from AI crawlers is an architecture issue; the missing security headers and the missing llms.txt live in the same config files; response-time problems hurt rankings, crawl budget, and user trust simultaneously. Checking the deployed app for all three surfaces them together.

What does the all-in-one cost compared to the stack?

CheckVibe's SEO and AEO scanners are free. Security is the paid product: $0 to try (4 scans/month), solo plans $24–99/mo, Team from $25/seat/mo. A comparable paid stack runs roughly $50–150/mo across 2–3 subscriptions — and still lacks AI-readability testing.

Does any competitor scan SEO and AEO too?

In the vibe-coding scanner space, no — Vibe App Scanner, VibeEval, and Scanbee are security-only as of June 2026; VibeWrench includes a basic 5-point SEO scan but no AEO. In the marketing-tool space, Semrush has an AI-visibility toolkit but no security scanning. CheckVibe offers all three, with SEO and AEO as free side tools rather than paid features.

Keep reading

Best AEO tools for vibe-coded apps All head-to-head comparisons Free SEO scanner Free AEO scanner

Sources

Pricing and feature claims verified against these pages on June 12, 2026.