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seesaa.net

https://seesaa.net· First analyzed 13 Feb 2026· Updated 13 Feb 2026
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seesaa.net
Desktop screenshot of seesaa.net
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Hosting Provider

oracle.com/cloud

IP Address

138.2.21.1

Server Location

🇯🇵 Tokyo, Japan

ASN

AS31898

Organization

Oracle Cloud Infrastructure (ap-tokyo-1)

Nameservers

ns-818.awsdns-38.net.ns-1159.awsdns-16.org.ns-1993.awsdns-57.co.uk.ns-61.awsdns-07.com.

Performance

Page Speed

867 KB
53 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Oracle Cloud

Technology Stack

11 Technologies Detected

SEO Analysis

D58/100
8
4
1
S
seesaa.netseesaa.net

Seesaaブログ(シーサー):無料でアフィリエイトからまとめブログまで

Seesaaブログはいろいろな機能がつまった無料ブログサービスです。まとめブログ、アフィリエイトなどさまざまなブログを見つけてください。

Title Length36 chars

Recommended: 50-60 chars

Description Length68 chars

Recommended: 120-160 chars

Issues (1)

  • Many images missing alt text (7/8)

Crawlability

Sitemap
robots.txt

22 rules

Sponsored

Sponsored

F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

26.01.2026

Valid Until

26.04.2026

Subject Alternative Names (12)

*.blog.seesaa.jp*.gurume.net*.iiblog.jp*.ryokou.me*.seesaa.blog*.seesaa.net*.seesaa.space*.sokuho.org+4 more

SHA-256 Fingerprint

17:2B:6A:D9:AE:CB:D7:83:82:0F:0D:F9:F7:79:1D:7B:6C:7B:29:14...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Fri, 13 Feb 2026 00:36:08 GMT
etag
W/"698e70a4-7da7"
last-modified
Fri, 13 Feb 2026 00:30:28 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mx.seesaa.net

Domain Information

seesaa.net

Domain Age
22y 3m

Created

24.10.2003

Expires

24.10.2026

Last Updated

27.08.2025

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
Legitimate interest basis mentioned

Typography & Readability

Hiragino Kaku Gothic ProN

66/100
Readability
/30
20/40

13px · LH 1.40

Hierarchy
/20
25/25

2.31x ratio

WCAG
/25
15/15

Contrast: undefined

Performance
/25
13/20

1 font

Heading Font

Hiragino Kaku Gothic ProN

Sans30px

Body Font

Hiragino Kaku Gothic ProN

Sans13px

Contrast Ratio

--

Reading Comfort

~62 CPL

Optimal (45–75)
30px
h1
22px
h2
16px
h3
13px
p

❌ Critical: 13px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

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

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

2

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

Privacy & Cookies

1

Cookie consent and privacy compliance tools

3

Categories

4

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Ad Networks

Google Ad ManagerMedia.netSovrnPubMaticOpenXIndex Exchange

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Scripts & Styles

12 Resources

10
Scripts
2
Styles
6
Async
0
Defer

Top Script Sources

fundingchoicesmessages.google.com(2)googletagservices.com(1)ajax.googleapis.com(1)local(1)googletagmanager.com(1)

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Last analyzed: 13 Feb 2026 at 00:36

Historical Analysis & Change Tracking