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smile-zemi.jp

タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育｜【公式】スマイルゼミ

Last scanned Aug 24, 2026, 1:22 PM · 1 view

84

Overall score

Great

Summary

タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育「スマイルゼミ」. This website uses Apache. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育「スマイルゼミ」

Top issues to fix

9 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+3 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

128 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育「スマイルゼミ」

X (Twitter)FacebookInstagram

Meta tags

Title
タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育｜【公式】スマイルゼミ
Description
タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育「スマイルゼミ」
Canonical
https://smile-zemi.jp/
Language
ja
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
all
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育｜【公式】スマイルゼミ
og:description
タブレットで学ぶ幼児・小学生・中学生・高校生向け通信教育「スマイルゼミ」
og:type
article
og:url
https://smile-zemi.jp/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Cybertrust Japan Co., Ltd.
Subject
smile-zemi.jp
Valid from
Aug 3, 2026
Valid to
Feb 15, 2027
Days until expiry
174
SAN domains
smile-zemi.jp, www.smile-zemi.jp

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 2

Links

26 internal · 9 external · 20 broken

Images

40 total · 0 missing alt

Scripts / Styles

20 scripts · 21 stylesheets

JS / CSS size

3.0 KB · 4.4 KB

Page size

40.9 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://smile-zemi.jp
Final URL
https://smile-zemi.jp
HTTP status
200
HTTP version
HTTP/1.1
Response time
128 ms
HTML size
40.9 KB
Redirect chain
https://smile-zemi.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does smile-zemi.jp use?
smile-zemi.jp is built with jQuery, Apache.
Is smile-zemi.jp secure (HTTPS)?
Yes. smile-zemi.jp uses TLS 1.2 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Feb 15, 2027.
Who hosts smile-zemi.jp?
Hosting provider information for smile-zemi.jp is not available yet.
What is smile-zemi.jp's SEO score?
smile-zemi.jp scored 75/100 for SEO in the latest analysis (fair).
What is smile-zemi.jp's overall website score?
smile-zemi.jp has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.