| Feature | VOW | IDX |
|---|---|---|
| Registration | Required | Usually not required |
| Relationship | Broker-consumer relationship formed | None required |
| Data depth | Can be expanded, subject to rules | Public listing fields |
| Purpose | Serve registered clients online | Public search and lead capture |
Glossary · Listings & the MLS
Virtual Office Website (VOW)
A Virtual Office Website (VOW) is a broker's website that displays MLS listing data to consumers who register and establish a broker-consumer relationship, usually by creating an account and accepting terms. Because visitors register, a VOW can generally show more detailed information than a public IDX site, subject to MLS rules. VOW policies were designed to give online brokerages access comparable to traditional offices.
Also known as: VOW
How does a VOW work?
A consumer creates an account on the broker's site, agrees to terms of use, and thereby forms a broker-consumer relationship. That registration unlocks a deeper view of MLS data than a public feed shows. The broker must follow MLS rules on what can be displayed and how accounts are managed.
Registration is the key mechanic. By signing up and accepting terms, the consumer becomes a client of the brokerage for online purposes, much like walking into a physical office and asking an agent for help.
Once registered, the visitor can see expanded fields that MLS rules may withhold from public IDX pages. The broker remains responsible for honoring display limits, opt-outs by listing brokers, and other MLS requirements, which vary by system.
Why does a VOW matter?
A VOW lets online-first brokerages serve clients with the same depth of information a brick-and-mortar office could share. It levels the field between web-based and traditional firms and gives registered consumers richer data to research homes, subject to MLS rules and any listing-broker opt-outs.
The VOW framework grew out of policy efforts to ensure internet brokerages were not denied data available to traditional offices. For consumers, that means a registered account can reveal more useful detail for serious research.
What is the difference between a VOW and IDX?
The core difference is registration. IDX generally shows public listing data with no login, while a VOW requires an account and a broker-consumer relationship, which lets it display expanded data. Both draw from the MLS, but the VOW's registration gate is what unlocks the deeper view.
Many brokerage sites run both. A visitor can browse public IDX results freely, then register to access VOW features and see additional detail. What is available behind registration varies by MLS and by any opt-outs listing brokers have chosen.
Worked example. For example, an online brokerage invites a shopper to create a free account. After agreeing to terms, the shopper gains a broker-consumer relationship and can view expanded listing details that were hidden on the public pages. The broker now treats that visitor as a registered client and can follow up directly.
Common mistakes with Virtual Office Website
- Do not assume every MLS allows the same expanded data on a VOW, because display rules and listing-broker opt-outs vary.
- Avoid treating VOW registration as meaningless fine print, since it forms a broker-consumer relationship with real terms.
- Do not confuse a VOW with IDX; the registration requirement and deeper data access set them apart.
- Brokers should not ignore listing-broker opt-outs, as sellers and their brokers may restrict how their data appears on VOWs.
- Consumers should not expect a VOW to reveal confidential deal terms, because sensitive fields remain limited under MLS rules.
Internet Data Exchange (IDX)
Rules and technology that let brokers display MLS listings on their own websites.
Define TermMultiple Listing Service (MLS)
A private database where brokers share property listings and offers of cooperation and com
Define TermPocket Listing
A property marketed privately by an agent without being entered into the MLS.
Define TermDisclosure
The seller's legal obligation to reveal known material defects and facts about a property.
Define