Guides
IDX explained, and whether your website needs it
Every real estate website vendor sells IDX as essential. For most solo agents it is a $25-to-$60-a-month feature that competes with Zillow and loses. Here is what it is and who actually needs it.
Updated September 2026
What IDX is
IDX stands for Internet Data Exchange. In practice it means a feed of your MLS’s active listings, displayed on your website with a search box on top. A visitor types “3 bed under $600k in Maple Grove,” your site shows every matching listing from every brokerage in the MLS, and the visitor can click through to photos and details. The listing data belongs to the MLS and the listing brokers; you are licensed to display it under the MLS’s rules, which cover attribution, refresh timing and which fields you may show.
That is it. IDX is not a lead source, a ranking signal or a design feature. It is a search engine for the same inventory that is already on Zillow, Realtor.com, Redfin and every other agent’s IDX site in your market.
What IDX costs
On agent website platforms IDX is almost always a separate line. As of September 2026, published add-on prices run from about $25 a month (Placester) to $30 a month (Real Geeks), with other providers in the $25-to-$60 range and some charging a setup fee or requiring you to sign a data agreement with your MLS. Some MLSs also charge their own vendor or data-access fee, which is passed through to you.
| IDX line item | Typical range | Per year |
|---|---|---|
| Monthly IDX add-on | $25–$60/mo | $300–$720 |
| IDX setup or MLS agreement fee | $0–$300 one-time | $0–$300 |
| Website plan it attaches to | $59–$149/mo | $708–$1,788 |
So a “$59 a month” site with IDX is really $1,000 or more a year. Our cost guide lays out the full first-year totals by product.
What IDX is for
IDX exists so buyers can search for homes on your site instead of somewhere else. The business model behind it is registration: after a few searches, the site asks the visitor to create an account to keep browsing, and that account becomes a lead in your CRM. Paired with a drip campaign and a follow-up routine, it is a legitimate way to convert anonymous buyer traffic into conversations.
The word doing the work in that paragraph is traffic. An IDX search page converts visitors who are already there. It does not bring them.
The uncomfortable truth
Buyers do not search for homes on agent websites. They search on Zillow, Realtor.com and Redfin, on apps with saved searches, push alerts, mortgage calculators, school ratings and a decade of engineering behind them. A buyer who lands on your IDX page has almost always seen the same listing on Zillow already, with better photos handling and a faster map.
Your website’s job is not to compete with Zillow’s search. It is to make you the obvious choice once someone has decided to work with an agent.
That reframing changes what a site needs. A buyer or seller who Googles your name tonight is not looking for inventory. They are looking for evidence: that you are real, that you have sold homes like theirs, that you know the neighborhood, that you will answer when they write. A site that delivers that evidence in three seconds on a phone does more for your business than a search box that quietly loses to Zillow.
Who genuinely needs IDX
IDX earns its fee in one specific situation:
- Teams running paid buyer-lead funnels. If you spend money on Google or Facebook ads that send buyers to a search page, force registration and work the leads with a CRM and an inside sales agent, IDX is the engine of that machine. The $30 a month is a rounding error next to the ad budget.
- Brokerages presenting a full-market brand. A brokerage site is expected to search the whole market. That is a different product from an agent site.
If you read those two and thought “that is not me,” the rest of this guide is for you.
Who does not need it
- Most solo agents. Your leads come from your sphere, your listings, your signs, referrals and your reputation. None of those people want to search the MLS on your site; they want to confirm you are the right call.
- New agents. You have no ad budget to fill an IDX funnel and no follow-up system to work it. Spend the money on a site that makes you look established and put the rest into your first listings.
- Listing-focused agents.Sellers hire you to market their home, and they judge you on how your own listings look. A page of other brokers’ inventory does nothing for that, and can even send your visitor to a competitor’s listing.
What a no-IDX site should have instead
Dropping IDX is not settling for less. It is spending the same attention on the things that actually convince a client:
- Your listings, presented well.Active and sold, with photos that are resized for the web so the page loads fast, and a “featured” slot for the one you are proudest of.
- Your story in your own words.A tagline, a short “why work with me,” a real testimonial or two. This is what a nervous seller reads at 11 p.m.
- Your areas. The neighborhoods you actually work, named. It reads as expertise to a person and as relevance to Google.
- Instant enquiry notification. A contact form, and an enquiry form on every listing, that emails you the moment someone writes, with reply-to set so you can answer from your phone in one tap. Speed to lead beats search features.
- Lead capture that fits you.A “get new listings first” sign-up is the honest version of forced IDX registration: people give you their email because they want to hear from you, not because a search page locked them out.
All five of those are built in: your listings with auto-optimized photos, tagline and why-me and testimonial fields, contact and per-listing enquiry forms that email you instantly, and a new-listings subscriber block. No IDX, no feed to license, no IDX line on the bill. $39 a month, and you can build the whole site free before deciding to publish.
Verdict
Pay for IDX if you run paid buyer-lead campaigns and have a system to work them. Otherwise it is $300 to $700 a year for a search box that loses to Zillow, and the money is better spent on photography. A no-IDX site that shows your listings, tells your story and gets enquiries to your phone instantly is the right tool for most agents. Start one free on SiteCurb, or compare the IDX platforms if you are in the funnel business.
Questions people ask
What does IDX stand for in real estate?
Internet Data Exchange. It is the MLS policy and the technology that lets a broker or agent display other brokers' active listings on their own website, under rules set by the local MLS.
How much does IDX cost for a real estate website?
Typically $25 to $60 a month as an add-on to a website plan, and some providers charge a setup fee or require a separate MLS data agreement. Over a year that is $300 to $700 on top of the site itself.
Can I have a real estate website without IDX?
Yes. A website without IDX shows your own listings, your story, your service areas and a contact form. For most solo and listing-focused agents that is the whole job, and it removes the monthly IDX fee and the MLS paperwork.
Does IDX help with SEO?
Rarely for an individual agent. IDX pages are the same listings, with the same descriptions, published on thousands of sites, and Google already ranks Zillow, Realtor.com and Redfin for them. Your own listings, areas and name are where a small site can actually rank.
Does SiteCurb include IDX?
No, on purpose. SiteCurb sites showcase listings you add yourself, with auto-optimized photos and a per-listing enquiry form, for $39 a month with no IDX fee. If your business depends on displaying the full MLS inventory, an IDX platform is the right tool and SiteCurb is not.