What Is IDX in Real Estate? How Internet Data Exchange Works for Nigerian Agents

IDX (Internet Data Exchange) lets a real estate agent show listings from an MLS (Multiple Listing Service) on their own website, including properties listed by other agents. In Nigeria, Smart Estate IDX does this for listings on Smart Estate MLS. It is sold separately from the MLS, as a WordPress plugin licence, from ₦15,000 a month for one site. Listing on the MLS itself is free.

Suppose you are an agent in Lagos with a professional website. It has your contact details, your bio and a page showing the handful of properties you currently market. A buyer visits, does not find what they need among those few properties, and leaves. You never hear from them.

Now suppose the same buyer finds a searchable set of current properties on your site, filtered by location, price, bedrooms and property type. They find three they like and send an enquiry, and it comes to you. That second scenario is what IDX is for.

IDX Defined

IDX comes from the United States. The National Association of Realtors describes its IDX policy as giving MLS participants "the ability to authorize limited electronic display of their listings by other participants" (NAR: Internet Data Exchange). In plain terms: agents agree that other agents may show their listings on their websites, and the MLS supplies the data.

The listings on an IDX site are not copied in by hand. The site reads them from the MLS, so when a listing is added, changed or taken down on the MLS, the website reflects it without anyone re-typing it (allowing for a short delay while data is cached).

How IDX Works With Smart Estate MLS

1. A listing goes on the MLS. An agent lists a property on Smart Estate MLS with its photos, price, location and details, and it gets an MLS code. The details stay as the listing agent entered them: Smart Estate MLS verifies agents, not listings.
2. Your website asks the MLS for listings. The Smart Estate IDX plugin, installed on your WordPress site, requests active listings from the MLS. You can show active MLS listings generally, or only your own.
3. Your site displays them. The plugin shows the listings on your pages, in your site's design: a search bar, a listings grid, a map search and individual property pages.
4. Enquiries come to you. When a visitor enquires through your site, the enquiry is yours as the site owner. It is not sent to Smart Estate MLS or to the listing agent.
5. If the property is another agent's, co-broke on the record. To act for that buyer on another agent's listing, use co-broking on Smart Estate MLS: refer the buyer or request a shared mandate, and agree the split on the platform, so the introduction is recorded. Only identity-verified agents can enter another agent's deal.

1. One record, held once, in the listing service
2. Member sites request it rather than copying it
3. Every site shows the same facts
4. A correction at the source reaches all of them

What Smart Estate IDX Costs

Smart Estate IDX is sold separately from Smart Estate MLS, as a WordPress plugin licence. Every plan has the same features; the difference is how many websites you can use it on:

Plan	Price	Websites
Starter	₦15,000 a month	1
Pro	₦35,000 a month	3
Agency	₦75,000 a month	10

Listing your own properties on the MLS is free, with no subscription price, no trial and no listing cap. IDX is the paid extra for showing listings on your own website.

Is IDX Worth It for You? Work It Out Yourself

Smart Estate has no published results from IDX customers, so we will not quote you traffic figures or a return on investment. You can work out whether it makes sense for your business with your own numbers:

1. The cost. Starter is ₦15,000 a month, which is ₦180,000 a year for one site, plus whatever your website hosting and upkeep already cost.
2. What one deal is worth to you. Take your typical commission on a transaction, and remember that on another agent's listing you share it under the split you agree when co-broking.
3. The break-even. Divide the yearly cost by what one deal is worth to you. If that comes to well under one extra deal a year, the question is simply whether your site will bring you at least that.
4. Measure. Once it is running, count the enquiries that come through your site and how many become transactions. Decide after a few months, on your own figures.

A website on its own does not bring visitors. IDX gives people something useful to do on your site; you still need to bring them there through your social media, your reputation and your own content.

IDX on Your Site Compared With Portal Adverts

Many agents pay for adverts on property portals. The two do different jobs, and many agents will use both:

Factor	Portal advert	IDX on your website
Enquiries	Arrive through the portal, on the portal's terms	Come to you as the site owner
Brand	The buyer often remembers the portal	The buyer searches on your site, under your name
Visitors	The portal brings its own audience	You have to bring visitors yourself
Properties shown	Usually only your own adverts	Active MLS listings, or only your own if you choose
Keeping it current	You update each advert yourself	Read from the MLS, where listings must be re-confirmed regularly
Cost	Set by each portal	A monthly IDX licence, from ₦15,000 for one site

IDX and Search Engines: Keep Expectations Realistic

You will often read that IDX makes a website rank on Google. Be careful with that claim. The same listings appear on the MLS and on every other site that shows them, so listing pages alone are not what makes your site different in search results. What helps is content only you can write: guides to the neighbourhoods you know, answers to the questions your clients ask, and clear pages about the services you offer. IDX then gives the visitors who arrive something useful to search.

What Smart Estate IDX Gives You

For WordPress websites

Smart Estate IDX is a WordPress plugin. Once installed and activated with your licence, you place its features on your pages with shortcodes:

• A property search bar and a listings grid, filtered by location, price, property type and bedrooms
• A map search
• Individual property pages
• An enquiry form, with enquiries coming to you
• Visitor accounts, so buyers can save properties and searches on your site

For other websites

Smart Estate IDX is built for WordPress. If your site runs on something else, ask Smart Estate what is possible before you buy.

If you do not have a website yet

Your Smart Estate MLS agent profile is a free public page showing your listings and reviews. A verified agent's profile also shows the Verified badge. Start there, and add a website when it makes sense for your business. Buyers find agents through the agent directory.

Common Ways IDX Is Delivered

• Framed IDX: the listings sit inside a frame (an iframe) on your page, served from another site. Quick to set up, but limited in design, and search engines generally treat the framed content as belonging to the other site.
• Plugin IDX: a plugin, for example for WordPress, displays the listings on your own pages in your site's design. This is how Smart Estate IDX works.
• API integration: a developer builds the display from the listing data directly. The most flexible, but it needs technical resources to build and maintain.

For most Nigerian agents with a WordPress site, a plugin is the simplest route: no developer needed for the basics, and enquiries come straight to you.

What IDX Means for Buyers and Sellers

• For buyers: the same listing record, with the same details and the same MLS code, whether you find it on Smart Estate MLS or on an agent's website. That makes it easier to tell one property from another. It does not verify the property: inspect it, check the title and use your own lawyer.
• For sellers: a property listed once on the MLS can also be shown by agents who run IDX on their own sites, without being re-posted under different prices.
• For agents: a way to give website visitors a fuller choice of properties while keeping your own brand and your own enquiries.

Getting Started

1. Register on Smart Estate MLS and complete identity verification, so you can co-broke on other agents' listings
2. List your properties on the MLS, free, with every field filled in
3. If you have a WordPress site and the numbers work for you, buy a Smart Estate IDX licence and install the plugin
4. Write the local content that brings visitors to your site
5. Count your enquiries and deals, and judge it on your own figures

For a plain account of what Smart Estate MLS checks, read how Smart Estate MLS checks agents and titles, and browse more guides for agents on the Smart Estate MLS blog.

Frequently Asked Questions