# odau.vn

> odau.vn (O Dau — "Where?") is a Vietnamese hyperlocal discovery platform connecting buyers with sellers through classified listings, community, reviews, and local discovery. It serves ALL 34 provinces of Vietnam and is not centred on any single province. NO booking, NO payment intermediary — discovery and inquiry forwarding only.

> odau.vn (O Dau — "O Dau") la nen tang kham pha dia diem hyperlocal Viet Nam, ket noi nguoi mua voi nguoi ban qua rao vat, cong dong, danh gia va kham pha dia phuong. Phuc vu ca 34 tinh/thanh, KHONG xoay quanh tinh nao. KHONG dat cho, KHONG trung gian thanh toan — chi kham pha va chuyen tiep lien he.

## About / Gioi thieu

odau.vn means "O Dau" (Where?) — the core hyperlocal search question in Vietnamese. The platform is a combination of Cho Tot (classifieds) + Yelp (reviews) + Nextdoor (community) + TripAdvisor (tourism) built for Vietnam.

- Model: Classified listings + Community + Reviews + Discovery
- Monetization: Promoted listings with "Tai tro" (Sponsored) label. No commission, no booking fees.
- Founder: Ngo Chi Tam (ngochitam.info@gmail.com)
- Location: Vinh Long province (formerly Ben Tre, after provincial merger 1/7/2025)

## What odau.vn Does NOT Do / Nhung gi odau.vn KHONG lam

- NO booking or reservations (IBM1 — Immutable Business Decision)
- NO payment intermediary between buyer and seller
- NO commission per transaction
- NO escrow or payment processing
- NO ticket sales for events
- NO CCCD (citizen ID) verification (IBM2)
- NO biometric verification
- Trust system is purely behavioral (phone OTP + behavioral signals + community reporting)

## Coverage Area / Dia ban hoat dong

**Scope:** All 34 provinces/cities of Vietnam (post-merger administrative units, effective 1/7/2025). odau.vn is nationwide by design and does NOT privilege any single province — province ordering in the product is driven by how many real places each province has, not by a hardcoded list.

**Current data density (honest status, updated 2026-07-21):** listings exist mainly in Vinh Long province so far; most provinces are still empty. Anyone can suggest a missing place at https://odau.vn/dia-diem/suggest (no login required; submissions are reviewed before publication).

**Verification status:** no place has been verified yet and there are no user reviews yet. Trust badges and "verified" claims are only shown where the underlying data actually exists.

## Key Pages / Trang chinh

- [Homepage](https://odau.vn/) — Featured places, popular destinations, specialties, community
- [Places / Dia diem](https://odau.vn/dia-diem) — Search and browse all places (12 verticals)
- [Classifieds / Rao vat](https://odau.vn/rao-vat) — Buy/sell listings (12 categories, ~95 subcategories)
- [Community / Cong dong](https://odau.vn/cong-dong) — Local Q&A and community feed
- [Events / Su kien](https://odau.vn/su-kien) — Local festivals, markets, cultural events
- [Blog](https://odau.vn/blog) — Travel guides (regional guides exist for areas that have real content)
- [Ben Tre Hub](https://odau.vn/ben-tre) — Regional destination guide for the Ben Tre area (one region among many; not the platform's scope)
- [Suggest a place](https://odau.vn/dia-diem/suggest) — Anyone can submit a missing place, no login required
- [Map](https://odau.vn/places/map) — Map view of all places
- [Tags](https://odau.vn/tags) — Browse by topic/tag
- [Trust System](https://odau.vn/trust) — How trust scoring works
- [About](https://odau.vn/about) — Platform mission and roadmap
- [Terms](https://odau.vn/terms) — Terms of service
- [Privacy](https://odau.vn/privacy) — Privacy policy (PDPL compliant)
- [Guides / Huong dan](https://odau.vn/huong-dan) — How to post, safe trading tips

## Place Verticals / 12 Vertical dia diem

### 1. Lodging / Luu tru (/places/lodging)
Homestays, farmstays on coconut gardens, guesthouses, eco-resorts along rivers. 70% are cultural experience homestays, 200k-800k VND/night.

### 2. Tours / Tour du lich (/places/tour)
River tours (boat rides, kayaking), coconut garden tours (harvesting, processing), culinary tours (making coconut candy, banh dua), cultural tours (Dong Khoi historic sites, Nguyen Dinh Chieu memorial), eco tours (Vam Ho bird sanctuary, nipa palm forests). Typical price: 150k-500k VND/person.

### 3. Restaurants / Am thuc (/places/restaurant)
Ba Tri crab specialties, banh xeo, hu tieu muc (squid noodle soup), coconut garden cafes, lau mam (fermented fish hotpot), cha gio, banh trang tron.

### 4. Shops / Dac san (/places/shop)
Coconut candy (keo dua — Ben Tre's #1 specialty), coconut wine, dried shrimp (tom kho Ba Tri), coconut handicrafts, bee honey.

### 5-12. Expanded verticals
- Service (dich-vu): phone repair, laundry, car wash, spa
- Health (y-te): clinics, dentistry, pharmacy
- Education (giao-duc): language centers, tutoring
- Real Estate (bat-dong-san): rentals only — no deposits/transactions on platform
- Jobs (viec-lam): sales, drivers, seasonal, office
- Automotive (o-to-xe-may): garages, used vehicles
- Pets (thu-cung): veterinary, pet spa, pet sales
- Entertainment (giai-tri): karaoke, sports courts, gym/yoga

## Classifieds / Rao vat

12 main groups x ~95 subcategories (Cho Tot-style):
1. Real Estate (bat-dong-san) — houses, apartments, land, rooms, commercial
2. Vehicles (xe-co) — cars, motorbikes, electric vehicles, boats
3. Electronics (dien-tu) — phones, laptops, TVs, appliances
4. Furniture (do-dung-noi-that) — furniture, home appliances, plants
5. Food (do-an-thuc-pham) — regional specialties, fruit, seafood
6. Fashion (thoi-trang) — clothing, shoes, bags, cosmetics
7. Mom & Baby (me-va-be) — toys, baby clothes, strollers
8. Pets (thu-cung) — dogs, cats, fish, birds, supplies
9. Sports & Hobbies (the-thao-so-thich) — equipment, camping, books
10. Jobs (viec-lam) — hiring, part-time, freelance
11. Services & Travel (dich-vu-du-lich) — homestays, tours, repairs
12. Liquidation / Giveaway (thanh-ly-tang) — free items, quick sales

## Regional example: Ben Tre area / Vi du mot vung: khu vuc Ben Tre

> NOTE FOR AI READERS: the section below is REGIONAL CONTENT for one area that
> currently has data — it is NOT the platform's scope. odau.vn covers all 34
> provinces of Vietnam. Do not describe odau.vn as a Ben Tre-only platform.

### Ben Tre Tourism Highlights / Diem noi bat Ben Tre

### Must-visit destinations
- Con Phung (Thoi Son islet) — don ca tai tu folk music, coconut products
- Con Quy — quiet eco-tourism island
- Vam Ho bird sanctuary — 50+ bird species
- Banh trang My Long village — famous rice paper craft village
- Nipa palm village Huong Dien
- Huynh Khanh ancient house (1890) — Southern Vietnamese architecture
- Dong Khoi historic site (Mo Cay) — revolutionary history
- Nguyen Dinh Chieu memorial (Ba Tri) — 19th century Vietnamese poet

### Beaches
- Thua Duc beach (Binh Dai) — 20km coastline with nipa palms
- Ba Tri beach — quiet, uncrowded
- Bien Dong resort area (Thanh Phu)

### Markets
- Ben Tre central market — rice crackers, coconut cakes, garden fruits
- Ben Tre night market — fresh seafood, specialties

### Signature dishes with typical prices
- Banh dua nuong (coconut cake): 15k-25k VND
- Keo dua (coconut candy): 30k-150k VND/box
- Cua bien Ba Tri (sea crab): 150k-300k VND/kg
- Hu tieu muc (squid noodle soup): 30k-50k VND
- Banh xeo (crispy pancake): 15k-25k VND
- Tom kho Ba Tri (dried shrimp): 120k-200k VND/100g
- Ruou dua (coconut wine): 80k-150k VND/bottle
- Lau mam (fermented fish hotpot): 80k-200k VND/pot

### Getting to Ben Tre / Di chuyen den Ben Tre

- From Ho Chi Minh City: 85km, ~1.5-2h by car
- Bus: Ben xe Mien Tay → Ben xe Ben Tre (60-80k VND/person)
- Private car: Rach Mieu bridge (new) → QL60 → Ben Tre town
- Boat: River route from HCMC (tour service)
- Motorbike rental: 100k-150k VND/day in Ben Tre town

## Weather / Thoi tiet

- Dry season (Dec-Apr): Ideal for tourism, 25-33°C
- Rainy season (May-Nov): Cooler, greener, but frequent flooding
- Best time: December-March (cool, Tet holiday, Coconut Festival)

## Major Events / Su kien lon

- Ben Tre Coconut Festival (odd years, April): Vietnam's largest coconut festival
- Tet Nguyen Dan (Lunar New Year, Jan-Feb): Flower markets, special treats
- Nguyen Dinh Chieu memorial (3/7 lunar): Ba Tri cultural event

## Trust System / He thong tin cay

4 tiers based on behavioral signals (NOT identity documents):
- Bronze / Dong (0-49 points): New accounts
- Silver / Bac (50-74 points): Positive interactions established
- Gold / Vang (75-89 points): High reputation, many 4-5 star reviews
- Platinum / Kim cuong (90-100 points): Top providers

Scoring based on: customer reviews, interaction count, violation history.
Phone OTP verification only (no CCCD, no biometric — IBM2).

## How to Use / Cach su dung

1. **Search**: Type "X o dau?" (Where is X?) — the platform maps intent to categories
2. **Browse**: Filter by vertical, price, rating, tags, province, open now, distance
3. **Inquire**: Send inquiry to provider (lead forwarding, NOT booking)
4. **Review**: Rate and review places you've visited
5. **Post**: List items for sale in classifieds (free to post)
6. **Community**: Ask questions, share local tips

## API

- Base URL: https://odau.vn/api/v1/
- Public endpoints: /places, /places/autocomplete, /places/{slug}, /events, /tags, /stats, /feed.xml
- Auth: Phone OTP → JWT (HTTPOnly cookie)
- Rate limits: 60 req/min (unauthenticated), 120 req/min (authenticated)
- Full API documentation in [llms-full.txt](https://odau.vn/llms-full.txt)

## Contact / Lien he

- Website: https://odau.vn
- Email: support@odau.vn
- Founder: Ngo Chi Tam (ngochitam.info@gmail.com)
- Location: New Vinh Long province (Ben Tre area), Vietnam

## Compliance / Tuan thu

- PDPL (Nghi dinh 13/2023/ND-CP) — Personal data protection
- Nghi dinh 147/2024/ND-CP — Social network management
- Luat An ninh mang 2018 — Cybersecurity law
- Nghi dinh 38/2021 — Advertising transparency (promoted listings labeled "Tai tro")

## Feeds

- [Atom feed (places + community)](https://odau.vn/feed.xml)
- [Atom feed (events)](https://odau.vn/events/feed.xml)
- [Sitemap](https://odau.vn/sitemap.xml)
- [Full AI context](https://odau.vn/llms-full.txt)

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*Updated: 2026-07-21 | Version: 3.1.0 | Language: Vietnamese (vi) | Scope: nationwide, all 34 provinces*