What does IDX actually do?
IDX (Internet Data Exchange) pulls MLS listings onto your own website. Buyers can search homes, save searches and ask about a property without leaving your site. The listings update on their own as homes go active, pending or sold.
The search box is not the real value. The real value is who owns the lead. When a buyer saves a search on Zillow, that buyer belongs to Zillow's system. When they save it on your site, they belong to you. (More on that in Zillow vs. your own website.)
When is IDX worth it?
IDX earns its fee when three things are true:
- Buyers are a steady share of your deals. Not one or two a year. A real part of your pipeline.
- You already send people to your site. Social posts, email, ads or open house sign-ins. IDX catches traffic. It does not create it.
- You will follow up fast. IDX leads are often early-stage. Without a follow-up system, they go cold.
If all three are true, IDX turns your site from a brochure into a tool buyers come back to. When you're ready, see how we build IDX websites that match your brand.
When can you skip IDX?
Skip it, at least for now, if:
- Most of your business is listings or referrals. Sellers don't need to browse every home in the MLS. They need proof you can sell theirs.
- You work a small farm area. A strong page for each neighborhood will beat a generic search box.
- You don't have time to follow up on buyer leads this year.
In these cases, IDX is a monthly fee for a feature few visitors will use.
IDX vs. no IDX at a glance
| With IDX | Without IDX | |
|---|---|---|
| Best for | Buyer-heavy agents | Listing and referral agents |
| Ongoing cost | Monthly IDX vendor fee | Hosting only |
| Main lead source | Saved searches, home inquiries | Home value and contact forms |
| Setup effort | MLS paperwork and vendor setup | Content and photos |
| What it proves | "Search homes with me" | "I know this area and I sell here" |
Does IDX help your site rank on Google?
Usually less than agents expect. How IDX is added to your site matters a lot:
- Iframe widgets load listings from the vendor's domain. Google generally does not count that content as part of your site.
- JavaScript widgets can be partly indexed, but results are inconsistent.
- Wrapper or subdomain setups (like
search.yoursite.com) give listings the best chance of being indexed, but much of that SEO value sits on the subdomain, not your main pages.
That breakdown comes from BRIX Templates' 2026 guide to IDX on Webflow.
Key takeaway: don't buy IDX as an SEO strategy. Your neighborhood pages, bio and guides do the ranking work. IDX does the lead capture.
Can you add IDX to a Webflow site?
Yes. Several IDX vendors work with Webflow, including IDX Broker, Add On IDX, iHomefinder and Buying Buddy. Most are added by pasting the vendor's code into an embed on your page, or by setting up a search subdomain.
Two things to know before you pick a vendor:
- Your MLS has to approve it. IDX isn't available out of the box. You (or the vendor) file paperwork with your local MLS first.
- Check your MLS's approved vendor list. Not every vendor works with every MLS.
What to build instead of IDX (or before it)
If you're skipping IDX for now, put that budget here:
- One page per neighborhood you serve. Real photos, what homes sell for, who lives there, your recent sales.
- A home value page. This is your main seller lead tool. See our guide to home value pages that get seller leads.
- A bio page that proves local experience. Sales, years in the area, specialties, real reviews.
- A clear contact path on every page. Phone, text and a short form.
You can always add IDX later. A good site is built so search can drop in without a redesign.
Frequently asked questions
How much does IDX cost per month?
It depends on the vendor and your MLS. Most charge a monthly fee, and some MLSs charge their own fee too. Ask for both before you sign. For the full picture, see how much a real estate agent website costs.
Is IDX bad for SEO?
Not bad, just limited. Iframe-based IDX adds little SEO value to your main site. Your own written pages do most of the ranking.
Do I need IDX if I'm already on my brokerage's website?
Your brokerage site already shows listings, but leads from it often go through the brokerage first. Your own site with your own search keeps the buyer relationship with you.
Can I add IDX later?
Yes. If your site is built with a clean page structure, adding IDX later is mostly vendor setup and MLS approval, not a rebuild.
What's the difference between IDX and VOW?
IDX shows public listing data anyone can see. A VOW (Virtual Office Website) can show more data, like some sold details, but usually requires buyers to register first. Rules vary by MLS.
