Vol. 01 — AI Citation IndexAugust 2026
Citation/Research

Who does AI cite when people ask? We measure it — industry by industry.

Industries / US Real Estate

US Real Estate

AI Citation Index · July 2026 · Updated August 2, 2026

Read as report →

612 prompts spanning buying, selling, financing, regulation and market sentiment — each run 5 times on five AI platforms. The top 20 sources below account for 89% of all 41,286 citation events we captured.

612

Prompts

15,300

Answer runs

41,286

Citation events

±1.2 pp

95% confidence margin

Zillow14.7%0.8Realtor.com11.4%0.3Redfin9.5%0.4Investopedia7.7%0.2Reddit6.6%1.1Bankrate5.9%0.2NAR4.5%0.1NerdWallet4.1%0.3Homes.com3.8%0.5HUD3.5%0.2Rocket Mortgage2.9%0.1Wikipedia2.7%0.4
01

The ranking

Blended citation share, weighted by platform usage

#SourceCitation shareΔ Jun
1Zillowzillow.com14.7%-0.8 pp
2Realtor.comrealtor.com11.4%-0.3 pp
3Redfinredfin.com9.5%+0.4 pp
4Investopediainvestopedia.com7.7%+0.2 pp
5Redditreddit.com6.6%+1.1 pp
6Bankratebankrate.com5.9%-0.2 pp
7NARnar.realtor4.5%+0.1 pp
8NerdWalletnerdwallet.com4.1%+0.3 pp
9Homes.comhomes.com3.8%+0.5 pp
10HUDhud.gov3.5%+0.2 pp
11Rocket Mortgagerocketmortgage.com2.9%-0.1 pp
12Wikipediawikipedia.org2.7%-0.4 pp
13Truliatrulia.com2.6%-0.2 pp
14YouTubeyoutube.com2.3%+0.6 pp
15HousingWirehousingwire.com1.8%+0.1 pp
16Inmaninman.com1.5%
17Compasscompass.com1.2%+0.1 pp
18RE/MAXremax.com0.9%-0.1 pp
19Movotomovoto.com0.7%
20Fortunefortune.com0.7%+0.1 pp

Top 20 of 1,912 cited domains. Δ = change in blended share vs June 2026.

02

Every engine has a sourcing personality

Top 10 sources × 5 platforms

SourceChatGPTAI OverviewsPerplexityCopilotClaudeBlended
Zillow14.216.513.814.913.114.7
Realtor.com11.512.810.210.89.411.4
Redfin9.110.49.89.28.69.5
Investopedia8.96.16.87.28.87.7
Reddit5.28.99.65.44.16.6
Bankrate6.44.95.26.85.95.9
NAR4.64.23.94.45.84.5
NerdWallet4.43.24.14.94.64.1
Homes.com3.44.83.63.93.23.8
HUD2.84.62.93.14.93.5

Citation share by platform (%). Shading scaled within each column.

03

What kind of content gets cited

Share of citation events by content type

41,286citation events classified
  • Listing & property pages24%
  • Guides & explainers21%
  • Community discussions14%
  • Market data & statistics12%
  • News & trade media10%
  • Government & regulatory8%
  • Video6%
  • Tools & calculators5%

Listing pages win on volume, but only because transactional prompts demand them. On the 58% of prompts that are informational, guides and explainers capture 41% of citations — and community discussions are closing the gap every month.

The quiet structural story: government and regulatory content holds 8% of citations with almost no traditional SEO footprint behind it. AI engines treat primary sources as ground truth. Everyone else is competing for the remaining 92%.

04

Six-month trend

Blended citation share, Feb–Jul 2026

05101520FebMarAprMayJunJulZillow 14.7%Realtor.com 11.4%Redfin 9.5%Investopedia 7.7%Reddit 6.6%

Zillow's slide is the story: still the runaway leader, but down for three straight months. Reddit (+1.1 pp in July alone) and YouTube are absorbing the informational long tail that portals used to own.

05

Key findings

July 2026

  1. Finding 01

    The portal triopoly is loosening

    Zillow, Realtor.com and Redfin still absorb 35.6% of all citations, but their combined share is down 3.1 pp since February. The losses are not going to other portals — they are going to community discussions and video, which grew from 19.1% to 22.4% over the same period.

  2. Finding 02

    Each AI engine has a distinct sourcing personality

    ChatGPT over-indexes on reference content (Wikipedia 3.9%, Investopedia 8.9%). AI Overviews routes 3.2× more citations to community and video than ChatGPT. Claude is the most institutional, favoring government and association sources. A brand's AI visibility strategy cannot be platform-agnostic.

  3. Finding 03

    Guides beat listings on informational intent

    For how-to and definitional prompts — 58% of the corpus — explainer content captures 41% of citations while listing pages capture just 9%. Listing pages only win when intent is explicitly transactional. Content type, not domain authority, is the strongest predictor of citation on informational prompts.

  4. Finding 04

    Government sources punch far above their SEO weight

    hud.gov appears in 8% of all citation events despite a negligible traditional-search footprint. On FHA and fair-housing prompts its citation rate quadruples. AI engines treat .gov domains as ground truth for regulatory questions — a structural advantage no commercial site can replicate.

  5. Finding 05

    First position compounds

    Brands whose average first-citation position is in the top two retained 91% of their share month-over-month, versus 67% for brands cited in position four or lower. Early citation appears to be both a cause and a consequence of durable AI visibility.

06

Metro editions

AI visibility, market by market

● Live

Los Angeles →

412 prompts · Local players index

Collecting — Aug window

Austin

Corpus in field

Collecting — Aug window

Miami

Corpus in field

Aug window

Phoenix

Corpus in field

Aug window

Denver

Corpus in field

National rankings tell you who runs the table; metro editions tell you who runs your street. All markets →

07

Method & reuse

Prompt corpus weighted by US search demand; 5 runs per prompt per platform; deterministic citation extraction with manual audit of a 4% sample; frozen prompt set re-run monthly. Full protocol, limitations and confidence math are public.

Methodology →

Underlying dataset

citations.csv41,286 rows

prompts.csv612 rows

domains.parquet1,912 domains

methodology.pdf14 pages

Free with email. CC-BY 4.0 — cite us, reuse freely.

Free visibility scan

Is AI citing your brand — or your competitor?

This index is a monthly snapshot. Pagelens tracks your citation share across every AI engine in real time, down to the prompt.

Powered by Pagelens. Free, no account required.