Your SEO Tool Is Lying to You (If You Ship React, Next.js, or TanStack)

Description and use

A framework‑aware SEO crawler detects hydration mismatches, client‑only OpenGraph tags, and indexation blockers that generic tools miss, offering clear fixes.

Problem

SEO audit tools report green checks for React/Next.js/TanStack sites, yet social previews are blank and Google Search Console flags pages as "Discovered not indexed" with no explanation.

Outcome

The crawler surfaces hydration mismatches, client‑only OpenGraph tags, indexation blockers, and console errors that generic tools miss, enabling developers to fix SEO issues that affect social previews and search indexing.

Workflow

• 1. Paste URL into Sohnics SEO Crawler
• 2. Pass 1: Raw HTTP crawl (no JS)
• 3. Pass 2: Headless browser crawl with Playwright (hydration, console listening)
• 4. Diff results to detect mismatches
• 5. Review report with plain‑English explanations and fix snippets

Evidence

every "SEO audit" tool I ran told me my pages were fine green checkmarks across the board and then a client's WhatsApp link preview would show up blank

Source

Instead of a single pass, it runs two, and diffs them: Pass 1 — Raw HTTP Crawler; Pass 2 — Headless Browser DOM (Playwright)

Source

Every detector returns a plain-English explanation plus a copy-paste fix — not just a red ❌.

Source