SEOCHECKPILOT BLOG

Deep-dive technical SEO guides.

No fluff, no generic tips. Every guide here is written to be the last thing you need to read on the topic — with real examples, actual numbers, and working code where it helps.

Structured DataTechnical SEOJSON-LD

What Is JSON-LD? The Complete Guide to Structured Data

JSON-LD is the recommended way to add structured data to your pages — but most guides skip the parts that actually matter. Here's everything: how it works, which types Google actually uses, and the mistakes that silently kill your rich results eligibility.

·18 min readRead →
DNSEmail SecurityDeliverability

SPF, DKIM, and DMARC Explained: Why Your Emails Are Landing in Spam

Three DNS records stand between your emails and the spam folder. Most site owners set up SPF, forget DKIM, and have never heard of DMARC. This guide explains all three, what happens when they fail, and exactly how to fix them.

·16 min readRead →
Technical SEORedirectsPageRank

What Is a Redirect Chain? How It Kills SEO (And How to Fix It)

A single redirect is fine. A chain of them is a quiet PageRank leak that compounds every time you move content. Here's how redirect chains form, how much equity they actually cost, and the fastest way to flatten them.

·14 min readRead →
Open GraphSocial MediaTechnical SEO

Open Graph Tags: The Complete Guide With Examples

Every link you share on social media is shaped by Open Graph tags — and yet most sites get them wrong. Wrong image size, missing og:description, no Twitter Card fallback. This guide covers every tag, every platform quirk, and how to test them.

·15 min readRead →
IndexingGoogle Search ConsoleTechnical SEO

How to Check If Your Website Is Indexed by Google (7 Methods)

Ranking requires being indexed first. Surprisingly often, pages that should be indexed aren't — and owners have no idea. Here are seven ways to check indexing status, from site: searches to Search Console to crawl log analysis.

·13 min readRead →
ToolsSEO AuditComparison

Free SEO Audit Tools Compared (No Signup Required)

We tested every major free SEO audit tool to see what they actually check vs what they claim. No paywalls, no trials — just honest side-by-side results on the same test URL.

·17 min readRead →