About the product
What is Metryn? A free technical check for AI and search crawlers
Updated 16 October 2026 · Methodology · Sample report · Compare · For online stores · About
Metryn is a website scanner. Give it a public address and it reports what search and AI crawlers can fetch and read: robots.txt access, indexability, sitemap, structured data and basic content signals.
It isn't an SEO suite, it doesn't track rankings, and it doesn't claim to make you appear anywhere.
The facts, in short
- What it is: a technical scanner for public web pages. It reports crawler access, indexability, sitemap, structured data and content clarity.
- Crawlers tracked: 10 (the list, each one's purpose and the date it was last checked against its operator's documentation are public in the methodology).
- Method: real HTTP requests and real parsing of the raw HTML. It doesn't run a browser or execute JavaScript, so content that only appears after scripts run is flagged as a heuristic.
- Price: free scan. Full report is a one-time €5.99, no subscription; applicable taxes are calculated at checkout.
- Account: none. Payment is handled by Paddle as merchant of record.
- Free tools: a robots.txt checker and generator for AI crawlers, and an llms.txt validator, at /tools. They read one file each and store nothing you submit.
- What it doesn't do: rankings, keywords, backlinks, or any guarantee of traffic or citations.
What it checks
| Area | What Metryn looks at |
|---|---|
| Crawler access | What robots.txt says to each tracked AI and search crawler, such as OAI-SearchBot, PerplexityBot and Googlebot |
| Indexability | Whether the page returns a usable status, carries noindex, and has a valid canonical |
| Sitemap | Whether a valid sitemap exists and includes the scanned URL |
| Structured data | Whether JSON-LD is present, parses, and says something sensible about the page |
| Content clarity | Whether the title and main heading tell the same story, and whether the key content is in the HTML |
| Product data (0 points) | On a page that shows evidence of being a product page: whether the Product, Offer and ProductGroup JSON-LD in the HTML has the fields Google's merchant listing guides require (name, image, a price above zero, a valid currency and availability), duplicate blocks, and whether the markup price agrees with the price in the same HTML. Often inconclusive, because prices added by JavaScript are never read. Paid report only, and never part of the score |
| Informational notes (0 points) | hreflang consistency, the redirect chain to the final URL, Sitemap: and Crawl-delay lines in robots.txt, a possible soft 404 on the checked URL, and /llms-full.txt structure. Shown only when there is something to report, and never part of the score |
Each finding states how confident the check is. A declared robots.txt policy is reported as a declared policy. Metryn says plainly when something is something it can't verify, for instance that it can't see your Search Console to confirm indexing, or that your robots.txt could not be retrieved because the scanner may have been blocked. A robots.txt group that names MetrynScanner is honoured and the scan is not performed.
Who it's for
- Founders of SaaS products who want to know whether their pricing and docs pages can be read by crawlers.
- Store owners, including Shopify and print-on-demand stores, who want to catch technical problems before they pay for marketing.
- Freelancers and agencies who need a quick, defensible first look at a client's site.
- Anyone who was told to "do SEO" and wants to see what's actually broken, in plain language.
Who it isn't for
- People looking for keyword research, backlink analysis or rank tracking. Metryn does none of that.
- Anyone who wants a guarantee of traffic, rankings or being cited by an AI assistant. Nobody can give that, and Metryn doesn't pretend to.
- People who want to monitor what AI assistants say about their brand, or to track citations and mentions over time. Metryn checks whether your page can be fetched and read, not what is said about it.
- Anyone looking for uptime monitoring. Metryn scans when you ask it to and does not watch your site.
- Sites behind a login. Metryn scans public pages.
What makes it different
Three things, and they're all checkable. The checks are deterministic: the same page in the same state gives the same score, because the tests are real requests and real parsing and not a model's opinion. The method is public, including the list of crawlers, each one's purpose and the date it was last checked against its operator's own documentation. And the limits are published: Metryn lists what it cannot verify and what the score does not predict.
It also scans itself in public. The sample report is a real scan of Metryn's own site, with the findings as the scanner produced them and only grouped for reading, dated and scanned with a named scanner version (it scores 100/100 as of 2026-10-14), and the page also explains the two homepage bugs earlier scans found and how they were fixed.
Where other tools are better
Metryn tracks 10 crawlers. Some free checkers test more user-agents, and at least one sends a live request as each bot, which Metryn doesn't do by default. Metryn's access probe is simulated and labelled as such. If all you need is a quick read of robots.txt, a free single-purpose checker is enough. A side-by-side with sources is on the comparison page.
What it does with your data
No account or login. The full HTML of a page is never stored: findings keep short evidence snippets. Each scan also keeps a small snapshot of what the scanner read (title, description, first heading, labels for any Shopify markers it saw, and the first 500 characters of visible text, about 4 KB), shown only on the complete report and removed after 90 days. When you open the complete report, Metryn reads your robots.txt and sitemap once more to draft the files it offers to paste; nothing from them is stored. Payments are handled by Paddle, which is the merchant of record, so Metryn never sees card details. Weekly monitoring is not available: a result page has a waiting list for it, which stores only an email address you choose to give, with your consent, for that single purpose. The privacy policy has the details.
Questions people ask
Will Metryn make my site show up in ChatGPT or Google?
No tool can promise that. Metryn checks the technical preconditions, such as whether the crawlers can reach the page and whether it can be indexed. Whether a page then appears depends on factors outside any scanner.
Is the free scan enough?
It shows the score and the most important findings. The paid report adds the full prioritized list with the evidence and recommendations, as a PDF you can hand to a developer or a client.
Who is behind it?
A single person. Metryn is an independent project, and the /about page names the operating entity and how to reach it.
How is it different from a general SEO tool?
It covers one narrow area deeply and says so: technical readiness for search engines and AI crawlers. It doesn't try to be an all-in-one suite.
One more thing
This tool evaluates technical AI search readiness. It does not guarantee indexing, rankings, citations, recommendations, traffic, or revenue.
Try it on your own site
Paste a public address. The scan takes seconds and doesn't need an account.