Tsoden
Public audit for leanpub.com

What we found

C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews is 1 fix away from more book sales and course enrollments.

Most of your page does its job. What is missing: AI assistants have nothing to read. That is a text change, not a redesign.

Read from 5 live pages · metadata, crawlability, trust, CTA, schema, sitemap, robots, llms.txt

Questions about this audit? Reply to the email or write to us — a human answers same day.

1 fixable leak

The complete, prioritized plan to fix the leak above and win more book sales and course enrollments — written for C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews, delivered instantly.

Book a free 30-min call See what's leaking ↓

What buyers and AI/search engines see right now

Pages checked55 read in full
How we read itRead as crawlers doSame view buyers & bots get
Response time716msUnder the 2.5s target
Checks verified12/131 need fixing

Diagnostics

What we checked, and what we found

40 checks across six areas — search visibility, AI & answer engines, performance, security, conversion and trust — each measured against C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews's live site.

32 pass 2 warn 6 fail

Of the 40 checks we ran on your page

Anything we couldn’t read is its own segment — a page that blocks our reader is our limitation, not a mark against you, and it never lowers your score.

Fine as-is — 32Needs fixing — 6Couldn’t read — 2
See the numbers
StateCountShare
On your page3280%
Missing615%
Couldn’t read25%

Where your page is strong, and where it isn’t

Each area is scored 0–100 against what a customer needs to find before they act.

strong (75+)close (50–74)needs work (under 50)
Can they take the next step 79
Reasons to believe you 92
Can people find you 81
Can AI assistants read it 67
Speed on a phone 89
A safe, trusted connection 100
See the numbers
Part of your pageScoreHow that reads
Can they take the next step79/100strong
Reasons to believe you92/100strong
Can people find you81/100strong
Can AI assistants read it67/100close
Speed on a phone89/100strong
A safe, trusted connection100/100strong

Priorities

Fix these first

Ranked by revenue impact. Each one is something authors and readers — or an AI answer engine — need to see and currently can't. Fixing the top few moves your score the most.

01

AI assistants have nothing to read

Publish /llms.txt with a concise machine-readable product summary, audience, pricing, and docs links.

What we read on your page

What a customer finds — and doesn’t

8 of the 8 things we could check are already on your page. Your page already has 8 of the 8 things a customer looks for. You don't need a redesign — just the few that are missing.

Below is the breakdown: what's already working (with the exact text quoted from your page as proof), and the highest-impact additions to win more book sales and course enrollments — in priority order.

Scope: an automated scan of the 5 pages we could read across your site. Every “found” item quotes the exact text on your page so you can verify it. It doesn't judge copy quality or design.

Already on your page

  • A headline that says what you do — found: “Your Book. In Any Language.” (on /services/translate_ai)
  • An obvious button that starts the thing — found: “Get a Reader Membership”
  • Reviews or proof from real customers — we found “reviews”, which points at it, but no actual review or rating on the page we read
  • A concrete number, not an adjective — found: “60+”
  • Something that removes the risk of trying you — found: “Refund”
  • A price, or at least a from-figure — found: “$129”
  • An easy way to get in touch — found: “form field on page”
  • Answers to the questions people ask before buying — we found “FAQ”, which points at it, but no actual list of answers on the page we read

What to add, in order of impact

  • All readable selling elements were detected. Test and sharpen the existing copy.

Deliverable

The full write-up is ready

We've already done the full work-up for C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews — every fix written out, with copy and code ready to paste. Here's what's inside:

Complete fix plan (every issue, step by step)

1. AI assistants have nothing to read

Publish /llms.txt with a concise machine-readable product summary, audience, pricing, and docs links.

  1. Publish /llms.txt with a plain-text product summary, audience, pricing and key links.
  2. Keep it concise — answer engines reward clear, factual structure.
  3. Update it when your offer or pricing changes.

Done-for-you assets — copy & paste

SEO title
Where to paste: Replace the <title> tag inside your page <head>.
Leanpub: Write and Sell Your In-Progress Books
Meta description
Where to paste: In <head>, set <meta name="description" content="…"> to this (replace the old one).
Create and sell your in-progress books and courses while engaging readers with free updates. Start your publishing journey today!
H1 — main page heading
Where to paste: Make this the single <h1> at the top of the homepage (real text, not an image).
Publish Your Book or Course While You Write

— or one of these —
- Engage Readers with Your In-Progress Work
- Start Selling Your Book Before It's Finished
Primary CTA button
Where to paste: Use as the main button on the first screen; repeat it after your proof/services section.
Start Publishing
JSON-LD structured data (Organization)
Where to paste: Paste this entire block right before </head> (or before </body>).
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews",
  "url": "https://leanpub.com/",
  "description": "Leanpub is an online platform for authors to publish and sell in-progress books and courses.",
  "makesOffer": [
    {
      "@type": "Offer",
      "itemOffered": {
        "@type": "Service",
        "name": "Write and publish in-progress books"
      }
    },
    {
      "@type": "Offer",
      "itemOffered": {
        "@type": "Service",
        "name": "Sell online courses while developing them"
      }
    },
    {
      "@type": "Offer",
      "itemOffered": {
        "@type": "Service",
        "name": "Engage readers with free updates"
      }
    },
    {
      "@type": "Offer",
      "itemOffered": {
        "@type": "Service",
        "name": "Create bundles of books and courses"
      }
    },
    {
      "@type": "Offer",
      "itemOffered": {
        "@type": "Service",
        "name": "Access marketing tools for authors"
      }
    }
  ]
}
</script>
llms.txt (for AI answer engines)
Where to paste: Create a plain text file at leanpub.com/llms.txt with this content.
# C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews

> Create and sell your in-progress books and courses while engaging readers with free updates. Start your publishing journey today!

## Services
- Write and publish in-progress books
- Sell online courses while developing them
- Engage readers with free updates
- Create bundles of books and courses
- Access marketing tools for authors

## Links
- https://leanpub.com/

Page-by-page findings

PageWhat to fix
/no H1 heading
/services/translate_ailooks healthy
/ai_serviceslooks healthy
/terms5 H1s (should be 1)
/c/stratosphericlooks healthy

Action order

48-Hour Fix Plan

  • Publish /llms.txt with a concise machine-readable product summary, audience, pricing, and docs links.

Why it matters

The fastest authors and readers do not read every page. They scan the first screen, trust signals, pricing cues and how easy it is to publish a book or course. Missing signals make the offer harder to understand and easier to ignore.

Packages

Turn this into more book sales and course enrollments

You've seen the leaks. Most owners start with the €49 full report — the same fixes we'd implement for €199, written out so you can do them yourself. Want it hands-off? Step up a tier.

Do it yourselfFree

The complete evidence report and the prioritized, step-by-step plan for C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews — every fix written out with copy & code ready to paste. It is on this page. Nothing to buy, nothing to unlock.

Read the full plan ↑
Done-for-you — 48h€199

We implement the highest-impact fixes for C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews — metadata, schema, CTA, llms.txt, trust signals — in 48 hours. You keep every bit of the lift, no lock-in.

Have us do it — €199
Ongoing monitor€499/mo

Weekly re-checks of C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews + drift alerts so the fixes compound and never silently slip back.

Start monitoring

Not sure which fits? Book a free 30-min call and we'll tell you straight. · 48-hour turnaround · no lock-in · every claim verified.

Verification

The exact wording we found

Every signal below was read from your live site — nothing is estimated. We checked 5 pages; “couldn’t verify” means a signal needs JavaScript to read and we won’t guess.

What we read

TitleLeanpub: Publish Early. Publish Often.
Meta description179 chars
H1 heading Found 4/5
Structured data Found

Crawl & AI files

robots.txt Found
sitemap.xml Found
llms.txt (AI) Missing
Response time716ms

Pages we checked

/
Leanpub: Publish Early. Publish Often.
Read
/services/translate_ai
TranslateAI: Your Book. In Any Language. For $49.
Read
/ai_services
AI Services | Leanpub
Read
/terms
Terms of Service | Leanpub
Read
/c/stratospheric
Stratospheric - From Zero to Production with Spring Boot and AWS
Read

Questions about anything in here? Reply to the email, or reach us directly — we answer the same day.

Email

Who we are

Tsoden — a full-service web studio

We don't just audit — we build and rank websites end-to-end. Web development & design, plus SEO & AEO, so your business shows up in Google and in AI answers like ChatGPT, Perplexity and Gemini. This report is where we start; we can implement every fix below and grow your visibility on a full-service basis.

Web development & redesign — fast, conversion-first sites
SEO — rank in Google for what your buyers actually search
AEO — get found & cited by AI answer engines (ChatGPT, Perplexity, Gemini)
Ongoing monitoring & growth — we keep it improving
Work with Tsoden →or email support@tsoden.ai

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Disclaimer

This service is a marketing and informational tool based on public website signals. It is not legal, financial, tax, investment, security, or professional advice. Scores and recommendations are estimates, not guarantees of revenue, rankings, AI visibility, deliverability, or business outcomes. You remain responsible for reviewing, approving, and implementing any changes and for complying with laws that apply to your business.

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This audit is from 3 Sept 2026 — we re-run it fresh when you order C++ Under Pressure: A Practical Interview Guide from 1k+ Interviews · Grade A · 92/100
Done-for-you — €199 Book a free 30-min call