Saeroon Hosting
WhyWhat we take onAttachPermissionsEvidenceWhere we arePricing
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In preparation If there is a service you want to build

Stop rebuilding
what sits under the screen.

Payments, booking and members are needed by every business alike, so we built that layer in advance and proved it on live sites. You and your AI build the screen; everything underneath is there to be called.

Prove it with us, at no charge →See exactly where we are

Where we are
44 projects went up for proving, and 33 of them are public
Among them, not one rebuilt members, booking or payments
We have never billed for hosting, so revenue and paying customers are both zero

Unicorns, faster and cheaper
Deploy · the actual command
$ npx @saeroon/cli deploy ./site
That one line is the whole deploy. Below is the result.
today-flower.saeroon.comLive site
A community site running members and boards
Why we are building it

Different trades, the same payments and members.

An accessory shop reaches the point of needing its own store, a guesthouse its own booking, a small firm its own community. Whatever sits on top, the layer beneath that takes payments, accepts bookings and tells users apart is needed just the same.

From scratch, every timeWhich booking to refuse when two overlap, and who may change an order once payment clears, hardly differ from trade to trade. Every business still starts over.
The cost of every fixAI does build backends. It just rarely lands on the first try, so a loop of fixing and re-checking follows, and tokens pile up as that loop runs longer. What drives the cost is the length of the loop, not the price list.
A layer that hides its own faultsSomeone else's records showing up, or an order changing hands, never surfaces on the screen. This is where the product breaks before the budget does.

What sets the price is not the number of screens. When the outsourcing market explains the jump from a website builder to custom development, what it points at is the booking system, member tiers and the admin console.

That loop is already behind us.

So that no business has to build it again, we finished payments, booking and members first and put them on sites that take real visitors. What we are doing now is getting that ready for people outside to use.

What we take on

The screen stays yours. We take the layer under it.

Saeroon Hosting does not build sites for you. You and your AI build the screen, and we take members, booking and payments underneath it.

What we take onThe layer every business repeats, members and booking and payments, and the work of keeping the servers and the records safe beneath it. We settle the rules in advance and leave changing them to you.
What you buildThe screen, and the rules particular to your business. If we settled the shape as well, your business would end up looking like everyone else's. The repeated layer holds no advantage; all of it sits above.
What we do not doWe do not take site-building work. Building something and invoicing for it is separate from this service, and what we charge here comes only from holding up a project once it goes live.

If you want a starting point, all seventeen templates we have already made are open at no charge. What you change above them is yours to decide.

01 · Deploying

The screen exists. Putting it up is one line.

The folder you built goes up as it is. No conversion, no build settings, and what lands stays standard HTML.

Terminal · actual output
$ npx @saeroon/cli deploy ./site

Saeroon Static Deploy
  folder: ./site
  files: 14 (HTML 3 + assets 11, 1.2 MB)
  · index.html → form="contact" (3 fields)
  computing content-hash...
14 files uploaded. (form conversions: 1)
manifest uploaded.

Site URL: https://site.saeroon.com
The numbers and the address are examples; the shape is the real output.
What comes along with no setup
  • Traffic and conversion analytics go in as you deploy
  • Security headers, spam filtering and address checks apply by default
  • Custom domain and certificate, daily backups, search files generated for you
  • Text and photos can be edited later, straight on the site itself
  • Projects for trying things out are unlimited in number and cost nothing
  • The folder you built is the original, so nothing holds it here
02 · Attaching

One line of HTML is the whole cost of attaching.

Forms and members take one line in the HTML. For boards and booking you settle once what should be collected, and it is the same from then on.

index.html · one line added
<form data-saeroon-form="inquiry"> … </form>

<form data-saeroon-auth="login"
      data-redirect="/account/"> … </form>
Rendered · spam filtering and storage included
SendSign in
The developer centre generates the full list for you.
FeatureWhatWhere it stands
MembersSign-up · sign-in · tiers · posts anonymised on leaving · per-post visibilityProven on a live site 189 members on a community site
InquiriesForm · spam filtering · inbox handlingProven on a live site Several sites
BoardsPosts · photos · video · comments · your design, our recordsProven on a live site 173 posts on a clinic's English site
Content editingText and photos, straight on the siteProven in-house In use on our own sites · undo is not ready
Traffic and conversionSources · conversions · per-campaign figuresProven on a live site Goes in as you deploy, down to per-campaign, per-page and per-country figures and CSV export
BookingSlots · confirmation · overlap guardProven on a live site We confirmed the refuse-on-overlap path on our own sites
App backendMembers and boards called from an appProven in-house In use in our own app · signing up directly is still in preparation
PaymentsProducts · orders · approval · checkoutProven in a demo Test payments ran end to end through settlement and receipts; the merchant review is under way

As of August 2026. What is not ready is written as not ready, so check here before you promise anything.

03 · Guarding

Permissions belong in the database, not the code.

A wrong assembly never shows on the screen. So who may see what is not left to the code; it is set on the database itself.

Row-level access policyForced on the 48 tables that hold members and orders, so even if an ownership check is missed in code, another person's records do not come back.
Sites kept apartRecords are separated per site, and a key opens one site only. Attaching never means handing over a whole account.
Where the servers and records sitThe origin servers and the records sit on hardware we built ourselves in Korea. Only the leg that carries the screen to overseas visitors borrows an outside network.

A fault in an app built with an AI builder, where a missing row-level policy let user information be read without signing in, was listed in the international vulnerability records in 2025. The listing also carries a note that the company has disputed it.

04 · Running it

Everything that piles up, on one screen.

Inquiries, members and posts gather in a single admin screen. Text and photos are edited straight on the site.

Text and photosClick what needs changing and it applies without deploying again. We use it on our own sites first, and undo is not ready.
Inquiries and membersInquiries move through read, handled and archived; members can have tier and status changed or be exchanged as a spreadsheet. Posts can be pinned or moved to another board.
InboxCatering demo · consultationsSample data
NameContactReceived
Ha-eun Jeong010-****-2847just now New
Ji-ho Ohjiho@···3 min ago New
So-yeo Han010-****-901327 min ago Seen
Member listCatering demo · membersSample data
NameJoinedTier
Do-yun Kim2 days agoVIP
Seo-a Lee5 days agoStandard
Si-woo Park1 week agoStandard
+ 124 more

Both screens above are drawn with sample data. They are not real captures.

05 · Analytics

Where people came from, and what they did.

Nothing to attach; it goes in as you deploy. It does not merely count visitors but follows each ad through to conversion.

How they arrivedThe five UTM values are fixed at first visit, and search, social and outside links are classified for you.
ConversionsPhone taps and email clicks count as conversions too. Conversion rate against visitors is kept by period.
Campaigns and figuresFigures accumulate per campaign, page, country and device, and export as CSV. A sharp change in visits raises an alert.
Ad pixelsDrop in the ad pixel you already use and it is detected, which brings up a consent banner. The banner shows for visitors in Europe, the UK, Switzerland and California, and we do not fire the pixel on your behalf.
Personal dataNo cookies, and addresses are kept only as a hash. The hash salt changes daily.

Figures are read in the admin screen and exported as CSV. Any wording carrying a number is kept with its basis and measurement record before it is published.

06 · Evidence

It went into 44 projects; 33 of them are public.

All 44 were built from the start the way we recommend, and nobody has yet arrived on their own and started using it. What these numbers say is not that customers chose us, but that the approach actually stands up.

Live sites · publicly open
A community site running members and boards
Members and boards confirmed A community site. Members who signed up through a social login are using the boards
The board on the English site of a sleep clinic
Boards confirmed The English site of a sleep clinic. 173 posts have accumulated
A legal services site
Taking part in proving A legal services site. A site being used for proving, with consent given in advance
Demo · payment simulation
The checkout flow of a shopping demo
Payment simulation A shopping demo. A demo that walks through to checkout; nothing is actually approved
197 membersMembers on live sites
253 postsPosts accumulated
173 postsMost posts on a single site

197 members and 253 posts are the total across the sites that are up, measured on 27 August 2026. 189 of the members sit on the community site and 173 of the posts on the clinic's English site. On this page we name trades, not companies.

07 · Where we are

We have not started the business yet.

Saeroon Hosting is in preparation. We are at the stage of building and proving it, and we have never billed anyone for hosting. This is not something to hide but where we stand, so we write it as it is.

Zero revenue, zero paying customersNo investment either. Not for want of buyers: we settled the pricing and are going through the payment merchant review, so billing has been held back.
Nobody has arrived from outsideEvery project up there now is one we built and proved ourselves from the start. Nobody has found us and started on their own yet, and filling that blank is the next thing to do.
One machine, no redundancyOff-site backup is not ready either. Before billing starts we will add a second machine and copy the records elsewhere. Starting while hiding this costs more later.
What to confirm before openingFirst we will measure a drill that restores deleted records within a set time, and how long the service held while a machine was deliberately stopped. Having a backup is not evidence; only a record of restoring one is.
Kept apart from the existing businessThe Saeroon business currently builds websites, and this service stands separate from it. We draw only the minimum that development requires from underneath it, and what the build work earns is not counted here.

Prove it with us, at no charge →For anyone building a service now and stuck underneath it

This page is the first thing we correct when the state changes. If another page claims more than what is written here, that page is the stale one.

08 · Pricing

The price for when it opens, stated in advance.

While you are building and refining, we will not bill. From the project where a domain you connected passes verification, or one real payment is approved, or active signed-up members pass 100 in a month, we will charge 4,900 won a month.

For whatPriceWhat is included
ProjectOne site for web, one backend for an app₩4,900Hosting · custom domain · certificate · members · boards · inquiry form · traffic and conversion analytics · editing text and photos directly
AnnualA year paid at once₩49,000Two months come off. What is included is the same as monthly
SendingMessaging · SMS · emailper messageAdded to next month's invoice for what was sent. Nothing is bought up front
In preparation Payments, booking and community are included in the flat fee but are still being wired up. Please wait until they open before taking real customers, and this page will change first when they do.
While nothing is billed
  • Zero, with no time limit set
  • No limit on the number of projects
  • No card on file
  • Every feature is open, so you can build and check
Where billing begins
  • When a domain you connected passes verification
  • When one real payment is approved
  • When signed-up members who logged in or acted that month pass 100. Visitors who merely looked around are not counted
What we will hold to on opening
  • The folder you built is the original, so nothing holds it here, and cancellation carries 30 days of grace
  • Price fixed for 12 months, any change announced 60 days ahead
  • The footer note is one line, 'Powered by Saeroon Hosting'
  • We take no sales commission; support is docs first, with email answered on business days

The monthly fee includes VAT and usage charges are separate. Sending is billed monthly in arrears for what was sent. Storage past the included amount is not billed — the rate is undecided, and we give 60 days of notice before any rate takes effect. Card processing fees are contracted directly with the payment provider. These figures are approved, but nobody has been billed yet.

09 · Together

We are looking for people to prove it with.

Tell us what you are building and what has to attach to it. A reference link makes it quickest. You will hear back within one business day, from the founder directly.

If you join now

We are in preparation, so nothing is billed. No limit on time or on the number of projects, and the folder you built is the original, so nothing holds it here later. We come out for the first setup and connect your AI agent to our service. Where the block is on the hosting side we fix it, and what we learn there goes back in so the next person does not stop at the same place.

  • A reply within one business day, from the founder directly
  • Scope explained against the feature table as written
  • The founder sets it up with you at the start
What are you building

After you send

  1. A reference link makes it quickest
  2. The reply sets out the scope against the feature table
  3. Once you start, the founder joins the initial setup

Who builds it

Donggeon KimFounder · builds it and answers it · LinkedIn

[email protected] · A 15-minute screen-share walkthrough on request

Saeroon Hosting

Backend hosting for first-time founders, with payments, booking and members proven in advance

Product

  • Why
  • What we take on
  • Attach
  • Permissions
  • Evidence
  • Where we are
  • Pricing

Resources

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Legal

Who makes it

  • Saeroon
Korean servers · Data stays in KoreaCEO personally answers inquiries
Company
새로온 (SAEROON)
Representative
김동건
Business Registration No.
107-22-94572
Mail-Order Sales Registration No.
2026-Suwon-Gwonseon-0686
Verify business info
Hosting provider
새로온 (SAEROON)
Address
경기도 수원시 권선구 구운중로 41 302호
Support
010-5959-1250
Email
[email protected]

Saeroon is a registered online seller under Korean e-commerce law.

© 2026 Saeroon. All rights reserved.

Open the developer centre →developers.saeroon.com

Hand this address to the AI you already use. It reads the docs and attaches them as written.

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