saas · Aug 20, 2026

siphon.blackdwarf.in

20/100 Sparse

Scores above 36% of 525 entry-page captures we have measured. Among the 289 saas funnels in that group, above 23%.

2/11 tactics
1 step
9 checks
3 flagged

Walk 13 links seen, 1 walkable, and 0 matched a funnel step. If this funnel continues past the entry page, we did not reach it — everything below is measured from the entry page alone.

How this was measured

Coverage is detection coverage, not a verdict — it counts the conversion tactics we could prove are present, out of the 11 that apply to a saas funnel.

Measured by Roentgen 1.25.1, one of our versioned rulesets. A capture is read once and its measurements freeze there, so the stamp says which ruleset read this one.

Captured Homepage / Lander — Step 1 · Homepage / Lander1 / 1

What we recorded

The funnel, frame by frame

1 step walked

see their whole funnel without clicking through it. scored step by step

measured

Homepage / Lander

3 tactics

Sticky CTAFAQDemo / docs

In their own words

26 quoted

the entry page’s own title, headline, buttons and prices — quoted, never paraphrased

measured

Page title: SIPHON | Open-Source Voice AI - No Markups, No Lock-In, No Middlemen
Meta description: Build production-grade AI calling agents on your infrastructure. Open-source Python framework with zero platform fees. Full control over data, costs, and AI providers. Alternative to Vapi, Retell, Bland.
Headline: No markups. No lock-in. No middlemen.
Section headings: How does Siphon workScale Horizontally with Zero ConfigEverything you need for Production AI CallingFrequently Asked QuestionsAutomatic Load BalancingLimitless WorkersTelephony FirstReal-time Latency+4 more, not shown
Buttons and links: Toggle themeagent.pyoutbound.pyinbound.pyIs SIPHON really free?Do I need to be a VoIP expert?Which AI models can I use?How does it handle latency?Can I scale this to thousands of calls?How does it compare to closed platforms?+1 more, not shown

Sections

4 identified

structural bands identified on this funnel, cropped from its own capture

measured

Nav section of siphon.blackdwarf.in — **Nav**0% down the page

Hero section of siphon.blackdwarf.in — **Hero**0% down the page

FAQ section of siphon.blackdwarf.in — **FAQ**71% down the page

Footer section of siphon.blackdwarf.in — **Footer**91% down the page

What we found

2 tactics

conversion tactics we could prove are present, with the on-page text that evidences each

measured

Action path1 of 4

Offers a demo or docs entry point Documentation

Friction reduction1 of 2

Answers buyer objections Frequently Asked Questions

What we didn’t find

9 of 11 applicable

applicable tactics we checked for and did not see on any step we reached

measured

What we didn’t see9 of 11 applicable

Trusted-by logo wall 1050 of 1369 measured funnels run this

Free trial / freemium 974 of 1248 measured funnels run this

Pricing tiers 636 of 1248 measured funnels run this

Press / "as seen in" 448 of 1769 measured funnels run this

Lead-capture form 310 of 1256 measured funnels run this

Us-vs-them comparison 304 of 1777 measured funnels run this

Proof above the fold 292 of 1777 measured funnels run this

Usage / adoption proof 224 of 1369 measured funnels run this

Scarcity / urgency copy 94 of 1769 measured funnels run this

Absence is a measurement, not a recommendation: we do not know why a tactic is missing, whether it belongs here, or whether adding it would change anything. Where a walk stopped early, a tactic living deeper would also read as not detected.