content · Sep 18, 2026

yubook.app

Fewer than 1% of the 1,705 multi-step funnels we have measured showed fewer conversion tactics than we found here.

0 conversion tactics detected

2 pages walked · measured by Roentgen 1.27.0

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How this was measured

Measured by Roentgen 1.27.0 on 2026-09-18. A capture is read once and its measurements freeze there, so the stamp says which ruleset read this one.

This is detection coverage, not a verdict — it counts the conversion tactics we could prove are present, out of the 7 that apply to a content funnel. A low count means we did not detect those patterns, not that the funnel is weak.

Walk 38 links on the entry page, 31 walkable. 1 matched a funnel step; we captured 2 pages in all, this one included.

The short version, in 4 parts

  1. Not seen

    7 of 7 applicable tactics we checked for and did not see

    FAQ / objection handling
    An accordion / FAQ block answering objections.
    Trusted-by logo wall
    Customer/company logos or a "trusted by / used by" claim.
    Press / "as seen in"
    Media logos or an "as seen in / featured in" claim borrowing publication credib…

    + 4 more

    See what we looked for

  2. Flagged

    3 of 9 build checks flagged, each with a fix

    Text contrast (WCAG AA)
    65% of measurable text passes WCAG AA. 4+ runs fail. 36% of text was unmeasurable (over i…
    Body text size
    Smallest sampled text is 11px, below the 13px floor this check uses.
    Tap-target size (mobile)
    51 of 84 interactive targets are under 44×44px on mobile.

    See the fixes

  3. Walked

    2 pages walked, Homepage / Lander to Tools

    Step 1
    Homepage / Lander
    Step 2
    Tools

    Walk it frame by frame

  4. In their words

    The headline: 혼자 하는 일

    Promise
    견적서·영수증 작성, 세금·급여 계산, 이미지·텍스트 변환. 가입 없이 사용하는 무료 온라인 도구 모음입니다.

    Read every quote

Captured Homepage / Lander
Step 1 · Homepage / Lander1 / 2

What we recorded

The funnel, frame by frame

2 steps walked

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

measuredextracted directly from the live page. a fact, not an opinion
Homepage / Lander
01

Homepage / Lander

▲ strongest
0 tactics

no named tactics detected on this step

Tools
02

Tools

▼ thinnest
0 tactics

no named tactics detected on this step

In their own words

19 quoted

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

measuredextracted directly from the live page. a fact, not an opinion
Page title
유북 Yubook — 무료 문서 작성·계산·변환 도구
Meta description
견적서·영수증 작성, 세금·급여 계산, 이미지·텍스트 변환. 가입 없이 사용하는 무료 온라인 도구 모음입니다.
Headline
혼자 하는 일
Section headings
문서 작성세금·급여수익·금융디자인·이미지개발 도구생활·텍스트도구 둘러보기서비스 정보+8 more, not shown

Sections

3 identified

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

measuredextracted directly from the live page. a fact, not an opinion
Nav section of yubook.app
Nav0% down the page
Hero section of yubook.app
Hero2% down the page
Footer section of yubook.app
Footer92% down the page

What we didn’t find

7 of 7 applicable

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

measuredextracted directly from the live page. a fact, not an opinion

What we didn’t see7 of 7 applicable

FAQ / objection handling 1,541 of the 2,334 funnels we checked
Trusted-by logo wall 1,419 of the 1,947 funnels we checked
Press / "as seen in" 608 of the 2,330 funnels we checked
Us-vs-them comparison 413 of the 2,334 funnels we checked
Proof above the fold 343 of the 2,334 funnels we checked
Usage / adoption proof 272 of the 1,947 funnels we checked
Scarcity / urgency copy 118 of the 2,330 funnels we checked

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.

How well it’s built

9 run · 3 flagged

contrast, mobile, typography, accessibility, weight — each with what would fix it

measuredextracted directly from the live page. a fact, not an opinion

3 of 8 measured checks need work1 could not be measured — not counted either way

Text contrast (WCAG AA)

contrast:text-contrast-wcag-aa

65% of measurable text passes WCAG AA. 4+ runs fail. 36% of text was unmeasurable (over images/gradients). not counted either way.

worst: “이 문서는 세금계산서가 아닙니다.” at 3.54:1 (11px, #888888 on #ffffff). needs 4.5:1

FixRaise text/background contrast to ≥4.5:1 (≥3:1 for large text), especially on CTAs and body copy.

Body text size

type:body-text-size

Smallest sampled text is 11px, below the 13px floor this check uses.

FixKeep body copy ≥15-16px; reserve sub-13px for fine print only.

Tap-target size (mobile)

mobile:tap-target-size-mobile

51 of 84 interactive targets are under 44×44px on mobile.

smallest: “Yubook” at 68×36px

FixGive tappable controls a ≥44×44px hit area. the touch minimum.

Worth knowing2

Line length

1 paragraph runs past ~95 characters per line.

FixCap measure at ~60-75ch for comfortable reading.

type:line-length
Heading levels

1 heading skips a level (e.g. <h2> followed by <h4>). Screen-reader users navigate by this outline.

FixStep heading levels one at a time; use CSS for size, not a deeper level.

a11y:heading-levels

Not measurable1

Page weight

At least 0.2 MB across 6 measurable resources, but 6 cross-origin resources did not expose a size. The true weight cannot be determined from the page.

weight:page-weight

Clear3

Mobile viewport · Language declared · Render-blocking resources

Brand kit

5 colour roles

palette by on-page usage · type rendered live

measuredextracted directly from the live page. a fact, not an opinion
full palette ordered by on-page usage %
accent#efe9df
bg#f6f2eb
surface#efe9df
text#161410
See the roles applied
accent

Body copy in their text role, on a surface card.

the roles, doing their job
The quick brown fox86px
Jumps over the lazy dog41px
A subheading in their voice27px

Body copy set at their measured paragraph size. This is how their product reads to a first-time visitor. same family, same scale, same weight.

  • List item one, at body scale
  • List item two
  • List item three
Type scale, weights & families
SIZE SCALE
11pxAa
12pxAa
13pxAa
14pxAa
15pxAa
16pxAa
20pxAa
23pxAa
25pxAa
27pxAa
41pxAa
86pxAa
WEIGHTS
Aa400
Aa500
Aa600
Aa700
FAMILIES
Song Myung · IBM Plex Sans KR
rendered in their own type system · webfont not loaded. system fallback if uninstalled

Measured, found none

3 of 9 layers

layers we ran on this funnel that came back empty

measuredextracted directly from the live page. a fact, not an opinion

Elements — the atomic pieces — price anchors, ratings, guarantees — with their verbatim on-page text

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

Playbook match — which funnel play this page runs — measured, evidence-quoted

We ran these passes on the pages we captured and found nothing to show. That is a measurement of this funnel, not a recommendation — and it is a different statement from a layer we never ran, which does not appear here at all.

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