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Website Audit Lead Funnel Engine

2026Growth & Lead GenerationIn-depth

What it is

A free website audit that is genuinely useful — and captures a qualified lead to unlock the detail.

Screenshot of Website Audit Lead Funnel Engine — Website Audit Lead Funnel Engine — live product

[ THE_PROBLEM ]

Why this existed

"Book a call" asks a prospect to spend time before receiving anything. Most will not. The alternative is giving away something genuinely valuable first — which only works if the tool is real.

[ WHAT_WE_BUILT ]

What we built

One real audit engine running 30+ checks across five modules. Security: HTTPS, HSTS, CSP, clickjacking, MIME-sniffing, version disclosure, mixed content, TLS certificate health, exposed .env/.git/config files, tech-stack fingerprinting and cookie flags. Email and domain: SPF, DMARC with policy parsing, DNSSEC and MX — the domain-spoofing exposure most businesses do not know they have. Plus SEO, AI/answer-engine readiness (JSON-LD, llms.txt, semantic HTML, E-E-A-T signals) and performance. Enrichment runs in parallel: DNS-over-HTTPS lookups, a raw TLS handshake, exposed-file probes and CVE lookups. Everything is graded A–F. The same engine ships as two separate funnels with different psychology — one framed as the independent audit your agency will not run, one as a head-to-head scoreboard against a named competitor with per-category winners. Both write into a shared Postgres database with funnel attribution, surface in a central leads panel, and trigger an email sequence: the permanent report immediately, then quick-win, competitor-gap and rescan follow-ups on an hourly cron.

Thirty-plus checks across security, email, SEO, answer-engine readiness and performance
Security: HTTPS, HSTS, CSP, clickjacking, MIME-sniffing, version disclosure, mixed content
TLS certificate health, exposed .env/.git/config probes, tech fingerprint, cookie flags
Email and domain: SPF, DMARC with policy parsing, DNSSEC and MX records
Answer-engine readiness: JSON-LD, llms.txt, semantic HTML, E-E-A-T signals
Parallel enrichment via DNS-over-HTTPS, raw TLS handshake and CVE lookups
A–F grading per category
Two branded funnels on one engine with separate positioning and attribution
Head-to-head competitor scoreboard with per-category winners
Shared lead database with funnel attribution
Email sequence: immediate report, then quick-win, competitor-gap and rescan follow-ups

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How a company uses it

Any agency or B2B service business replaces "book a call" with a tool that proves competence before the first conversation — the prospect arrives already knowing you found something. The multi-brand architecture means one engine can feed several positioning experiments at once.

Built with

Next.js 16Neon PostgresCheerioResendVercel Cron

[ COMMON_QUESTIONS ]

Questions clients ask

Why run two funnels off one engine?

Because the audit is the expensive part and the positioning is cheap to vary. One frames the audit as the independent check your agency will not run; the other frames it as a competitive scoreboard. Same checks, different psychology, separate brands and domains — and attribution in a shared database so you can tell which framing actually converts.

Is a free audit tool worth the build cost?

It depends on whether the audit is real. A superficial one damages credibility. This one finds actual exposures — missing DMARC, exposed configuration files, expired certificates — so the prospect arrives already knowing you found something, which changes the first conversation entirely.

Does gating the results annoy people?

Grades and issue titles are visible before the gate; the detail and the fixes are behind it. The visitor can see the tool found something real before deciding whether to trade an email for it. Gating everything converts worse, because there is nothing to evaluate.

[ RELATED_WORK ]