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grand-challenge.org

grand-challenge.org had about 101.92K visits in September 2026, down 16.08% from August; most traffic is direct.

Grand Challenge

Traffic

101.92K

-16.08%MoMEstimated monthly visits
789133.03K88.69K44.34K0
Global rank

317,441

Country rank · United States

291,082

Category rank · Computers Electronics and Technology

4,917

Average visit duration

02:03

Pages per visit

3.54

Bounce rate

40.67%

Domain age

17 years

Search share

29.6%

Traffic sources

  • Direct
    52.1%
  • Search
    29.6%
  • Referrals
    9.3%
  • Generative AI
    5.6%
  • Social
    2.3%
  • Email
    1.0%
  • Other
    0.0%
  • Paid search
    0.0%

Regions

  • United States
    26.8%
  • Netherlands
    13.7%
  • Vietnam
    12.8%
  • South Korea
    7.4%
  • India
    7.4%

See how grand-challenge.org compares with the most visited websites in the world, the fastest growing websites and sites gaining organic search traffic.

Search visibility

Keyword samples

Estimated visitsMonthly searchesVisits ÷ searches
  1. light my cells51059086%
  2. picai challengeBRAND340170200%
  3. conic dataset32065049%
  4. puma h&e21022096%
  5. pi-cai dataset20021095%

Keyword rankings

Keyword rankings

Example · google.comUnited States · English

86.4M

Search estimate

New 1 · Up 2

Ranking keywords
12,400
Landing pages
4
Search competitors
4
AI citations
2
PositionEstimated visits
  1. google#142M
  2. gmail#118.2M
  3. google maps#19.4M
  4. google drive#14.1M

Full keyword rankings are a Pro feature

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Baidu rank

Site profile

  • HTTP 200
  • Email authentication
  • Hosting ASN
  • DNSSEC
HTTP
200
Page size
68.7 KiB
Hosting
AMAZON-02 · AS16509
Email authentication
SPF · DMARC quarantine
TLS
TLSv1.3 · 121 days
Page and SEO
Title
Grand Challenge
Description
A platform for end-to-end development of machine learning solutions in biomedical imaging.
Cross-origin redirect
No
Word count
477
Internal / external links
34 / 10
Language
en
H1 / H2
1 / 0
Images missing alt
0 / 18
OG / Twitter
OG · Twitter
Technology and tracking2 technologies
Technology clues
Bootstrap · jQuery
External script hosts
static.grand-challenge.org
Social links
github.com · linkedin.com · github.com
Server
nginx
Security headers
5 / 6
HSTS / CSP
HSTS
Cookie
1（Secure 1）
Email and DNS securitySet
SPF
Set
DMARC
Set · quarantine
DKIM selectors
Not found
IPv6
No AAAA
DNSSEC
DNSKEY · AD
CAA issuers
amazon.com
Site verification TXT
Google
SOA
ns-314.awsdns-39.com
NS
ns-314.awsdns-39.com. · ns-731.awsdns-27.net. · ns-1157.awsdns-16.org. · 1 more
MX
10 inbound-smtp.eu-west-1.amazonaws.com.
Hosting and networkAS16509
A
99.86.195.35 · 99.86.195.99 · 99.86.195.109 · 99.86.195.111
Hosting ASN
AS16509 · 99.86.195.0/24
Hosting organization
AMAZON-02 - Amazon.com, Inc.
Hosting country
US
BGP announcement
Yes
Reverse DNS
server-99-86-195-35.nrt57.r.cloudfront.net
TLS
TLSv1.3 · Verified
Certificate issuer
Amazon RSA 2048 M01
Certificate remaining
121 days
Certificate SAN
DNS:grand-challenge.org · DNS:*.grand-challenge.org
robots and AI crawlingHTTP 200
Robots.txt
200
Global Disallow /
No
AI explicitly disallowed
0
AI explicitly allowed
0
Well-known public paths1 hits
Present / checked
1 / 5
/.well-known/security.txt
Present · 229 B
security summary
Contact: mailto:security@grand-challenge.org · Canonical: https://grand-challenge.org/.well-known/security.txt · Policy: https://grand-challenge.org/vulnerability-disclosure/

Website information

Domain
grand-challenge.org
Registration status
Domain registered
Registered
2010-03-21
Registrar
Amazon Registrar, Inc.
Expires
2027-03-21
Domain age
17 years
DNSSEC
Yes
Registry status
client transfer prohibited

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What's in this report

The report starts with a whole-site monthly visit estimate. Search visibility and public site facts follow when they exist.

  • Website traffic is a modeled whole-site estimate, with a source, observation period and confidence.
  • Search visibility is ranking keywords and search traffic, listed separately from whole-site visits.
  • Missing or partial values stay marked in the report.
Data notes →How estimates are produced →Website traffic sources →Claim, correct or hide this report →