# 21km.lol
> Cached snapshot — next refresh expected around 2026-10-16T02:27:51.063Z.
Public AI-agent Markdown profile for [21km.lol](https://trustmrr.com/startup/21km) on TrustMRR.
> Data identified in the Verification Sources section below is verified through connected external providers and APIs. All other details—including founder-provided descriptions, seller messages, and profile text—are user-generated content.

## Profile

- Name: 21km.lol
- Slug: `21km`
- TrustMRR page: [https://trustmrr.com/startup/21km](https://trustmrr.com/startup/21km)
- Markdown page: [https://trustmrr.com/startup/21km.md](https://trustmrr.com/startup/21km.md)
- Website: [https://21km.lol/](https://21km.lol/)
- Icon: [https://files.stripe.com/links/MDB8YWNjdF8xVUFFWnlMR2JCQ1NpcEhLfGZsX2xpdmVfU01qN0RaTWYzUkU3bjBjYWhxV0JHQXpG00YX68cS3f](https://files.stripe.com/links/MDB8YWNjdF8xVUFFWnlMR2JCQ1NpcEhLfGZsX2xpdmVfU01qN0RaTWYzUkU3bjBjYWhxV0JHQXpG00YX68cS3f)
- Description: Sponsor Aleks at a half marathon. Your logo runs all 21.1 km.
- Country: DE
- Founded date: 2026-08-30
- Founder: [Aleksandar Jovanovic](https://trustmrr.com/founder/aleksdoescode)
- Founder image: [https://pbs.twimg.com/profile_images/2095135791617830914/qNxYFIYQ.jpg](https://pbs.twimg.com/profile_images/2095135791617830914/qNxYFIYQ.jpg)
- X followers: 1,263


## Verification Sources

All revenue-related metrics on this page—including revenue, MRR, customers, subscriptions, and churn—are calculated from the startup's real payment records, retrieved directly from the payment provider through an API key (or an equivalent owner-authorized API credential, such as OAuth). They are not screenshots, manual entries, or self-reported revenue claims.
Where a secondary source is marked connected below, traffic, visitor, search impression, and click metrics are retrieved directly through the APIs of Google Analytics, DataFast, or Google Search Console.
- Verified payment provider API source: Stripe (API key)
- Merchant of record: No
- Revenue last synced: 2026-10-15T00:01:25.754Z
- Google Analytics API connected: No
- DataFast API key connected: No
- Google Search Console API connected: No


## Revenue

Revenue values are public verified revenue summaries. Current and last-30-day metric snapshots may be included separately when they are already stored on the startup profile.
| Period | Verified revenue |
| --- | ---: |
| Last 24 hours | $0.00 |
| Last 7 days | $0.00 |
| Last 30 days | $2.29 |
| Last 3 months | $308 |
| Last 6 months | $308 |
| Last 12 months | $308 |
| All time | $308 |
- Last 30 days revenue snapshot: $2.29
- Last 30 days revenue growth: -99.2%
- All-time revenue snapshot: $308
- Revenue data last synced: 2026-10-15T00:01:25.754Z
### Daily revenue — last 30 days
Daily totals use UTC calendar dates. Today's value may be partial.
| Date | Verified revenue |
| --- | ---: |
| 2026-09-16 | $0.00 |
| 2026-09-17 | $2.29 |
| 2026-09-18 | $0.00 |
| 2026-09-19 | $0.00 |
| 2026-09-20 | $0.00 |
| 2026-09-21 | $0.00 |
| 2026-09-22 | $0.00 |
| 2026-09-23 | $0.00 |
| 2026-09-24 | $0.00 |
| 2026-09-25 | $0.00 |
| 2026-09-26 | $0.00 |
| 2026-09-27 | $0.00 |
| 2026-09-28 | $0.00 |
| 2026-09-29 | $0.00 |
| 2026-09-30 | $0.00 |
| 2026-10-01 | $0.00 |
| 2026-10-02 | $0.00 |
| 2026-10-03 | $0.00 |
| 2026-10-04 | $0.00 |
| 2026-10-05 | $0.00 |
| 2026-10-06 | $0.00 |
| 2026-10-07 | $0.00 |
| 2026-10-08 | $0.00 |
| 2026-10-09 | $0.00 |
| 2026-10-10 | $0.00 |
| 2026-10-11 | $0.00 |
| 2026-10-12 | $0.00 |
| 2026-10-13 | $0.00 |
| 2026-10-14 | $0.00 |
| 2026-10-15 | $0.00 |
### Monthly revenue timeline
| Month | Verified revenue |
| --- | ---: |
| 2026-08 | $288 |
| 2026-09 | $19.68 |


## Metric Snapshots

These are current or last-30-day snapshots stored on the startup profile. Full timelines and deeper history require a TrustMRR account.
- Current MRR: $0.00
- Last 30 days MRR growth: 0.0%
- Current active subscriptions: 0
- Last 30 days profit margin: 98.0%


## Metrics Available After Login

Full MRR, churn, traffic/visitor, Google Search Console, Meta Ads spend, profit margin, and revenue-per-visitor timelines are not exposed in this public Markdown file. Current or last-30-day snapshots may be shown above when stored on the startup profile.
Create a free TrustMRR account to access metrics available to authenticated users: [TrustMRR dashboard](https://trustmrr.com/dashboard)
Full startup page: [https://trustmrr.com/startup/21km](https://trustmrr.com/startup/21km)


## Startup Insights

- Value proposition: Turns a real half-marathon shirt into a live sponsorship auction where higher bids get bigger, more prominent logo placements.
- Problem solved: Makes small-scale sponsorship more competitive, entertaining, transparent, and shareable instead of relying on fixed-price ad slots.
- Pricing model: No fixed pricing. Bidding starts at €1 and is cumulative. Higher total bids move sponsors up the ranking. #1 gets the dominant front placement, #2–#11
- Target persona: Startups, SaaS companies, agencies, local businesses, recruiters, founders, and
- Audience type: [Both](https://trustmrr.com/search?targetAudience=Both)
- Team size: 1 person
- Funding: Bootstrapped
- Estimated user count: 0
- Additional info: Live leaderboard, real-time rank changes, Stripe payments, sponsor profile pages, backlinks, shareable graphics, outbid notifications, race-day photos and video, and a real 21.1 km half marathon in Dortmund on October 3, 2026.
- Markets: [Marketing](https://trustmrr.com/category/marketing)


## Tech Stack

- Frontend: [React](https://trustmrr.com/tech/react)
- Backend: [Stripe](https://trustmrr.com/tech/stripe), [Railway](https://trustmrr.com/tech/railway)


## SEO Domain Data

- Domain: 21km.lol
- Domain rating: 0.0
- Last synced: 2026-10-09T06:34:10.514Z


## GitHub Activity

GitHub metrics are verified from the connected GitHub repository when available. Repository names and private repository details are not exposed in this public Markdown file.
- GitHub connected: Yes
- Contributions in last 7 days: 0
- Contributions in last 30 days: 0
- Contributions in last year: 112


## Screenshots

![Landing page (1920x9582)](https://d21oz30g4w22sz.cloudfront.net/startup-screenshots/21km/1788159839919-87eb858a-e026-48f2-a13f-cf216a4220fb-landing-page.webp)


## Acquisition

This startup is not currently listed for sale on TrustMRR.
Browse active acquisition listings: [TrustMRR acquire marketplace](https://trustmrr.com/acquire)


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These recommendations use the same public recommendation logic as the TrustMRR startup page. Each startup is returned as a consistently structured object for easier reading and parsing.
Browse more: [TrustMRR advanced search](https://trustmrr.com/search)
Note: Stealth Company is a placeholder label, not the actual company name. It means the underlying business and domain are not revealed publicly on TrustMRR. The founder may still be known to TrustMRR, and the revenue and other displayed metrics can still be verified; the public page simply avoids linking the real business identity or domain to this startup profile.
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    "revenueLast30Days": "$3,532",
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    "description": "We Submit Your SaaS to 140+ Directories Effortlessly",
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    "name": "Confidential Startup",
    "slug": "de-iker",
    "category": "Education",
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    "revenueMultiple": "0.9x",
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    "description": "scale mode 🚀",
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]
```


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