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How ready are the top 50 websites for agents?

50 domains from the Index’s list of the highest-traffic websites. Of those, only the 50 most-visited websites, by their place on the Index’s list of the highest-traffic websites. Snapshot taken 8 Oct 2026 (UTC).

What the snapshot shows

Median score71.4 OKThe median domain scores 71.4 out of 100, in the OK band.Good or better48%24 of 50 domains score 72 or more.Poor or critical22%11 of 50 domains score under 58.Strongest category73.5 GoodAccuracy averages 73.5; Market ranking is the weakest, at 52.2.Leading sector73.7 GoodMedia leads with a median of 73.7; E-commerce trails at 66.9.Agent sessions58%29 of 50 domains were scored with live agent sessions; the rest on protocol probes alone.

How the scores fall

50 domains by score band, 48% good or better.

71.4
median
Excellent
2 (4%)
85+
Good
22 (44%)
72-84
OK
15 (30%)
58-71
Poor
9 (18%)
40-57
Critical
2 (4%)
<40

The median is 71.4 and the average 68.6, out of 100.

By category

Average score in each category, strongest first. Accuracy leads; Market ranking trails.

08
categories
  • Accuracy73.5
  • Brand awareness71.4
  • Discovery71.2
  • Information retrieval69.1
  • Task completion69.0
  • Contact & communication57.6
  • Delegated access55.2
  • Market ranking52.2

By sector

Median score in each sector, highest first. Sectors with fewer than five domains are listed but not compared.

09
sectors
SectorDomainsMedianAverageHighest score
Developer tools1 domain, average 86.0, highest wordpress.org
186.086.0wordpress.org 86.0
Marketplace1 domain, average 81.3, highest weather.com
181.381.3weather.com 81.3
Finance1 domain, average 74.6, highest netflix.com
174.674.6netflix.com 74.6
Media11 domains, average 72.4, highest bbc.com
1173.772.4bbc.com 84.1
Social & community1 domain, average 72.5, highest whatsapp.com
172.572.5whatsapp.com 72.5
Utilities3 domains, average 70.7, highest duckduckgo.com
371.270.7duckduckgo.com 78.2
Education1 domain, average 70.8, highest alibaba.com
170.870.8alibaba.com 70.8
SaaS24 domains, average 65.9, highest zoom.us
2467.765.9zoom.us 87.7
Show 1 more sector
E-commerce7 domains, average 65.0, highest apple.com
766.965.0apple.com 77.4

Every domain in this report

Scores as they stood at the snapshot, highest first. Each links to its live scorecard.

50
domains
RankDomainSectorScore
1
zoom.usSaaS
SaaS87.7 (Excellent)
2
wordpress.orgDeveloper tools
Developer tools86.0 (Excellent)
3
bbc.comMedia
Media84.1 (Good)
4
github.comSaaS
SaaS83.3 (Good)
5
bbc.co.ukMedia
Media82.4 (Good)
6
dropbox.comSaaS
SaaS81.7 (Good)
7
wordpress.comSaaS
SaaS81.7 (Good)
8
weather.comMarketplace
Marketplace81.3 (Good)
9
mozilla.orgMedia
Media80.5 (Good)
10
shopify.comSaaS
SaaS79.1 (Good)
Show 40 more domains
11
twitch.tvSaaS
SaaS78.9 (Good)
12
foxnews.comMedia
Media78.4 (Good)
13
adobe.comSaaS
SaaS78.2 (Good)
14
duckduckgo.comUtilities
Utilities78.2 (Good)
15
apple.comE-commerce
E-commerce77.4 (Good)
16
linkedin.comMedia
Media77.1 (Good)
17
microsoft.comSaaS
SaaS76.4 (Good)
18
office.comSaaS
SaaS75.8 (Good)
19
youtube.comSaaS
SaaS75.8 (Good)
20
netflix.comFinance
Finance74.6 (Good)
21
bilibili.comMedia
Media73.7 (Good)
22
yahoo.comMedia
Media72.7 (Good)
23
theguardian.comMedia
Media72.5 (Good)
24
whatsapp.comSocial & community
Social & community72.5 (Good)
25
amazon.comE-commerce
E-commerce71.6 (OK)
26
bing.comUtilities
Utilities71.2 (OK)
27
baidu.comMedia
Media71.1 (OK)
28
aliexpress.comE-commerce
E-commerce71.0 (OK)
29
pinterest.comSaaS
SaaS71.0 (OK)
30
alibaba.comEducation
Education70.8 (OK)
31
jd.comSaaS
SaaS68.2 (OK)
32
wikipedia.orgMedia
Media67.4 (OK)
33
taobao.comSaaS
SaaS67.1 (OK)
34
walmart.comE-commerce
E-commerce66.9 (OK)
35
naver.comSaaS
SaaS62.9 (OK)
36
google.comUtilities
Utilities62.7 (OK)
37
target.comE-commerce
E-commerce59.8 (OK)
38
ebay.comSaaS
SaaS59.4 (OK)
39
etsy.comSaaS
SaaS58.7 (OK)
40
vk.comSaaS
SaaS57.1 (Poor)
41
tiktok.comSaaS
SaaS55.3 (Poor)
42
discord.comE-commerce
E-commerce55.2 (Poor)
43
bestbuy.comE-commerce
E-commerce53.3 (Poor)
44
openai.comSaaS
SaaS52.7 (Poor)
45
live.comSaaS
SaaS50.8 (Poor)
46
icloud.comSaaS
SaaS49.5 (Poor)
47
yandex.ruSaaS
SaaS49.3 (Poor)
48
homedepot.comSaaS
SaaS42.3 (Poor)
49
imdb.comSaaS
SaaS39.5 (Critical)
50
cnn.comMedia
Media36.4 (Critical)

How this was measured

Protocol probes for every domain, plus live agent sessions for 29 of 50.

58%
with agent sessions

Each score blends deterministic protocol probes (robots.txt, sitemaps, llms.txt, JSON-LD, MCP and OAuth discovery, bot-challenge posture and per-provider reachability) with live agent sessions where they have run, graded against a rubric independent of the agent. 29 of the 50 domains here include agent sessions; the rest were scored on probes alone.

The snapshot records whether agent sessions ran for each domain, not which models they ran on. Each domain's live scorecard names the models behind its latest sessions.

The domains were last scored between 28 Sept 2026 (UTC) and 5 Oct 2026 (UTC), and the snapshot was taken 8 Oct 2026 (UTC). The numbers on this page are frozen at that point; the live scorecards they link to keep moving.

The full method is on the methodology page.

Cite this report

Download PDF

Stunt Double Index, “How ready are the top 50 websites for agents?”, snapshot of 8 Oct 2026. https://index.stuntdouble.io/reports/how-ready-are-the-top-50-websites-for-agents