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keio.ac.jp

https://keio.ac.jp· First analyzed 13 Feb 2026· Updated 13 Feb 2026
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keio.ac.jp
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Hosting Provider

IP Address

131.113.131.113

Server Location

🇯🇵 Toranomon, Japan

ASN

AS38635

Organization

KEIO

Server

Nginx

Nameservers

a1-123.akam.net.a3-64.akam.net.a14-66.akam.net.a5-66.akam.net.+2 more

Performance

Page Speed

39 MB
72 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
KEIO

Technology Stack

4 Technologies Detected

SEO Analysis

D58/100
7
4
1
K
keio.ac.jpkeio.ac.jp

Keio University

Keio University is a leading research university committed to excellence and innovation in education, research and medicine. It is located in central Tokyo.

Title Length15 chars

Recommended: 50-60 chars

Description Length156 chars

Recommended: 120-160 chars

Issues (1)

  • Many images missing alt text (47/61)

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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

301d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.12.2025

Valid Until

11.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.keio.ac.jp

SHA-256 Fingerprint

04:94:8F:27:7D:B2:EB:32:EA:AC:0E:4A:D0:0E:EF:EF:0B:D2:0E:B2...

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Security recommendation preview

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
8593
content-type
text/html
date
Fri, 13 Feb 2026 12:40:28 GMT
etag
W/"698aafb4-785a"
last-modified
Tue, 10 Feb 2026 04:10:28 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

vmx2.m0.keio.ac.jp

Domain Information

keio.ac.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

Typography & Readability

Gotham SSm A

11/100
Readability
/30
5/40

12px · LH 1.00

Hierarchy
/20
8/25

1x ratio

WCAG
/25
5/15

Contrast: undefined

Performance
/25
13/20

1 font

Heading Font

Gotham SSm A

Sans12px

Body Font

Gotham SSm A

Sans12px

Contrast Ratio

--

Reading Comfort

~48 CPL

Optimal (45–75)
12px
h1
66px
h2
14px
h3
12px
p

❌ Critical: 12px body text is too small. Increase to at least 14px.

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Risky: Text appears on background images without overlay protection.

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

15 Resources

8
Scripts
7
Styles
1
Async
0
Defer

Top Script Sources

assets(6)googletagmanager.com(1)google.com(1)

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Last analyzed: 13 Feb 2026 at 12:40

Historical Analysis & Change Tracking