Free website checks: GEO audit, single point of failure DNS scan, Bubble error decoder. No key.
Scored across 3 tools
The three tools target completely different inputs and jobs: error-message explanation, website AI-readiness auditing, and DNS vendor dependency scanning. There is no plausible way for an agent to confuse them, and each description names its data source (Bubble text, home page/robots files, public DNS).
All names are lowercase snake_case with a clear noun/verb core, so they read consistently as a set. Minor deviation: decode_error is verb_noun while geo_audit and spof_scan are noun_noun, and 'spof' is an opaque acronym an agent may not parse without the description.
Three tightly scoped, self-contained free utilities is appropriate for a lead-gen toolset, with each tool earning its place. It sits at the thin end of the range, since there is no shared lifecycle or cross-tool workflow to justify the grouping beyond common branding.
Each tool covers its own narrow scope well, but coverage is shallow at the edges: geo_audit reads only four resources and spof_scan is DNS-only, so results are partial by design. There is also no way to batch, re-check, or feed one tool's output into another, leaving the set as three disconnected point checks.
Explain an error message from an app built on Bubble: the likely cause, a link to the full fix and the fixed-price service that fixes it. Matches the text against the same list as the decoder page at redcenterstudio.com/decoder/. Free, no key.
Inputs: error (required).
Check how ready a public website is for AI assistants and search engines: AI crawler access in robots.txt, sitemap, llms.txt, structured data, titles and page basics. Returns a score out of 100, each check with pass, warn or fail, and copy-paste fixes. Reads the home page, robots.txt, sitemap.xml and llms.txt only. Free, no key. Rate limited per connection.
Inputs: url (required).
Find which companies a business depends on for email, sign-in, DNS, website hosting, outbound email and SaaS, using public DNS only, and what a single outage would stop. Returns the layers, the vendors, a risk score and recommendations. Free, no key. Rate limited per connection and to about 20 fresh scans an hour; repeat scans of the same domain within an hour come from cache.
Inputs: domain (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Free SEO/GEO audits of public websites and AI answer-engine citation checks. No login or API key.
Checks a public website in six areas and returns scores from 0 to 100. Free, no key needed.
HTTP, DNS, SSL, WHOIS, ping, security-header, SEO and AI-readiness checks for any website.
24 free tools: IP/VPN lookup, WHOIS, DNS, SPF/DMARC, site up/down, redirects, time zones. No key.
Add one secure layer between your agents and this server.
