Professional Schema Checker guides

Google Schema Support Status — How to Tell What Google Actually Supports — Step-by-step guide

A schema type can be perfectly legitimate vocabulary without producing a Google rich result. This guide explains how to read support tables, feature diffe

Schema Doctor — Understanding Errors, Warnings and Safe JSON-LD Fixes — Step-by-step guide

Good validation explains the problem, the likely impact and the safest next action. Learn how to repair JSON-LD without silently inventing facts or weaken

Before and After JSON-LD Comparison — Review Every Change Safely — Step-by-step guide

A repair is only trustworthy when you can inspect what changed. This article shows how to use side-by-side comparison to distinguish harmless normalizatio

HTML Content and Schema Matching — Detect Misleading Markup Before Publishing — Step-by-step guide

Google expects structured data to describe what readers can actually find on the page. A lightweight local comparison can flag missing product names and s

Professional Schema Audit Reports — Explain Errors With Evidence Clients Can Use — Step-by-step guide

A useful SEO report is a decision document, not a pile of red indicators. Learn how to turn JSON-LD findings into clear priorities, official references, b

Bulk JSON-LD, HTML and ZIP Checking Without Login — A Safe Local Workflow — Step-by-step guide

Batch processing can turn hours of opening separate files into a short review, provided the tool keeps results separate, avoids unsafe archives and never

Upload JSON-LD or HTML, Fix Problems, and Download a Corrected File — Step-by-step guide

Code paste is useful for quick experiments, but real teams work with files. This hands-on guide explains how to upload source documents, preview safe edit

Explaining Schema Problems in Plain English and Roman Urdu — Step-by-step guide

Understanding a technical warning is often harder than fixing the punctuation. Clear explanations bridge the gap between website owners, developers and SE

Tool guide: JSON-LD Generator

How to Generate JSON-LD for Schema.org Types

Create factual Product, Article, FAQPage and other JSON-LD with the free generator, then check syntax and Google feature guidance.

Tool guide: CSV to JSON-LD Bulk Converter

How to Convert CSV Rows into JSON-LD

Map CSV columns to Product or LocalBusiness JSON-LD, validate each row and download per-row structured data with a report.

Tool guide: JSON-LD Formatter & Minifier

How to Format, Minify and Sort JSON-LD

Pretty-print, minify and reorder JSON object keys without changing structured-data facts or array order.

Tool guide: Schema Type Finder

How to Choose a Schema.org Type

Find Schema.org type candidates from a category or custom subject and understand dated Google feature filters.

Tool guide: @graph / @id Visualizer

How to Visualize JSON-LD @graph and @id

Explore directed JSON-LD entity relationships, @id references, duplicate IDs and unresolved links with a local SVG diagram.

Tool guide: Microdata / RDFa and JSON-LD Converter

Convert Microdata and RDFa to JSON-LD (and Back)

Step-by-step browser-local conversion between simple Schema.org HTML Microdata, RDFa and JSON-LD with explicit limitations.

Tool guide: Schema Diff Checker

Compare JSON-LD Before and After Changes

Use the Schema Diff Checker to find added, removed and changed properties and export a structural comparison report.

Tool guide: Property Coverage Scorecard

Check Required and Recommended Schema Properties

Compare your JSON-LD properties with dated Google feature field lists and understand what coverage does not prove.

Tool guide: Meta / Open Graph / Twitter Card Checker & Generator

Check and Generate SEO, Open Graph and Twitter Card Tags

Inspect static HTML metadata and generate escaped title, description, canonical and social sharing tags from real page facts.

Tool guide: SERP Preview Tool

SERP Preview Tool — Preview Titles and Search Snippets

Create a browser-local desktop or mobile search-result mockup and review advisory title-width and description-length warnings.

Tool guide: robots.txt Tester

robots.txt Tester — Check Crawler Access Rules

Paste robots.txt and check whether a selected user-agent can crawl a specific path using a documented local matching approximation.

Tool guide: Sitemap Validator & Generator

Sitemap Validator & Generator — Check and Create XML

Validate an XML urlset or sitemap index and generate a standards-shaped sitemap.xml from user-supplied URLs.

Tool guide: llms.txt Generator & Validator

llms.txt Generator & Validator — AI-readable Site Overview

Build a voluntary llms.txt Markdown overview from real website links or check an existing file for structural issues.

Tool guide: hreflang Checker & Generator

Check and Generate hreflang HTML and XML Sitemaps

Create hreflang link tags, inspect existing HTML and test reciprocal annotations across user-supplied language pages or XML sitemap entries.

Tool guide: Date / Duration / Currency Helper

Format Schema.org Dates, ISO Durations and Currency Codes

Validate dates and timezone offsets, convert fixed durations to ISO 8601, and format ISO 4217 price/currency fields for Schema.org while preserving entered decimal precision.

Tool guide: Agency Report Generator

Create a Client Schema and SEO Audit Report

Build branded, browser-local reports from manually entered findings or compatible SSC JSON findings arrays, with Before/After notes and printable exports.