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caltech.edu

caltech.edu had about 2.13M visits in September 2026, up 13.63% from August; the top source is search.

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Website traffic

How much traffic does caltech.edu get?

2.13M

+13.63%MoMEstimated monthly visits
7892.3M1.54M768.31K0
Global rank

26,256

Country rank · United States

9,119

Category rank · Physics

1

Average visit duration

02:43

Pages per visit

3.32

Bounce rate

49.55%

Search share

43.3%

Sources

Where does caltech.edu's traffic come from?

  • Search
    43.3%
  • Direct
    38.7%
  • Referrals
    9.6%
  • Social
    3.9%
  • Email
    2.3%
  • Generative AI
    2.1%
  • Display ads
    0.1%
  • Paid search
    0.0%
  • Other
    0.0%

Regions

Which countries visit caltech.edu?

  • United States
    62.6%
  • United Kingdom
    4.7%
  • India
    2.5%
  • Canada
    1.7%
  • Germany
    1.6%

See how caltech.edu compares with the most visited websites in the world, the fastest growing websites and sites gaining organic search traffic.

Search visibility

What keywords send traffic to caltech.edu?

Keyword samples

Estimated visitsMonthly searchesVisits ÷ searches
  1. caltechBRAND31.81K109.1K29%
  2. earthquake now12.03K13.26K91%
  3. earthquake los angeles11.4K13.89K82%
  4. cal techBRAND5.63K19.36K29%
  5. feynman lectures5.5K9.17K60%

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

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Baidu rank

Site profile

What does caltech.edu show publicly?

Partially available
  • Email authentication
  • Hosting ASN
  • DNSSEC
Hosting
AMAZON-02 · AS16509
Email authentication
SPF · DMARC none
TLS
TLSv1.3 · 80 days
Email and DNS securitySet
SPF
Set
DMARC
Set · none
DKIM selectors
default · selector1 · selector2 · s1 · s2
IPv6
No AAAA
DNSSEC
DNSKEY · AD
Site verification TXT
Adobe · Apple · Microsoft
SOA
ns0090.secondary.cloudflare.com
NS
ns0090.secondary.cloudflare.com. · ns0239.secondary.cloudflare.com.
MX
10 mx1.caltech.iphmx.com. · 10 mx2.caltech.iphmx.com.
Hosting and networkAS16509
A
52.26.125.194
Hosting ASN
AS16509 · 52.24.0.0/14
Hosting organization
AMAZON-02 - Amazon.com, Inc.
Hosting country
US
BGP announcement
Yes
Reverse DNS
ec2-52-26-125-194.us-west-2.compute.amazonaws.com
TLS
TLSv1.3 · Not verified
Certificate issuer
InCommon RSA OV SSL CA 3
Certificate remaining
80 days
Certificate SAN
DNS:caltech.edu · DNS:admissions.caltech.edu · DNS:alumni.caltech.edu · DNS:aphms.caltech.edu · 16 more

Website information

Domain
caltech.edu
Registration status
Registration status unconfirmed

Similar sites

What sites are similar to caltech.edu?

Website reports in the same category, with nearby monthly visits.

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 →