IsItIndexed VS Diffyn

IsItIndexed's answer

Most SEO tools tell you whether a page is indexed. That's a yes/no answer, and if you already know your page isn't indexed, it tells you nothing. IsItIndexed runs 13 diagnostic checks to figure out why Google won't index your page and what to fix first. It also checks whether AI platforms like ChatGPT, Claude, and Perplexity can find and cite your content. No other single-URL tool combines Google indexability diagnostics with AI visibility checks.

Diffyn's answer:

Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.

IsItIndexed's answer

• No account, no signup, no monthly subscription
• Paste a URL and get a prioritized report in seconds
• Free scan covers 4 technical checks
• Full report is a one-time $4.99 and covers content quality, structured data, page speed, sitemaps, and three AI visibility checks that no competing tool offers
• SEO agencies charge $500+ for audits covering similar ground
• The cheapest monthly tools start at $50

Diffyn's answer:

Diffyn is the platform that specializes on both change management and multi-model analysis.

IsItIndexed's answer

• Next.js and TypeScript on the frontend
• Cheerio for HTML parsing
• All 13 diagnostic checks are rule-based with no LLM anywhere in the pipeline
• Supabase for report storage
• Stripe for payments
• Hosted on Vercel

Diffyn's answer:

React, Next.js, POSTGRESQL

IsItIndexed's answer

Site owners, solo founders, bloggers, and freelance SEOs who are stuck in "Crawled, currently not indexed" limbo in Google Search Console. People who know something is wrong but don't have an SEO team to diagnose it. Also useful for anyone who wants to check whether AI search engines can actually find their content.

Diffyn's answer:

Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.

IsItIndexed's answer

Google's June 2025 core update pruned an estimated 15-20% of the index. More pages than ever are stuck in "crawled but not indexed" and existing tools only check whether you're indexed, not why. At the same time, AI crawlers showed up and nobody had tooling to check visibility across those platforms either. I built IsItIndexed to close both gaps in one scan.

Diffyn's answer:

I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.