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tac-school.co.jp

資格試験・資格取得の情報サイト｜資格の学校TAC[タック]

Last scanned Jul 26, 2026, 1:49 PM · 1 view

86

Overall score

Great

Summary

資格試験・資格取得の情報サイト・資格の学校TACのホームページ. This website uses Apache hosted on AWS behind CloudFront CDN. SEO is good (80/100) and accessibility is excellent (95/100). Security scores good (80/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

資格試験・資格取得の情報サイト・資格の学校TACのホームページ

United States
Hosted on AWS

Top issues to fix

8 issues found · 3 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 viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 2 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • 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.

+2 more issues — details in the sections below.

80

SEO

3 issue(s) found

90

Performance

286 ms

80

Security

HTTPS & header checks

95

Accessibility

1 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.

資格試験・資格取得の情報サイト・資格の学校TACのホームページ

X (Twitter)Facebook

Meta tags

Title
資格試験・資格取得の情報サイト｜資格の学校TAC[タック]
Description
資格試験・資格取得の情報サイト・資格の学校TACのホームページ
Canonical
https://www.tac-school.co.jp/index.html
Language
ja
Charset
UTF-8
Viewport
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
資格試験・資格取得の情報サイト｜資格の学校TAC[タック]
og:description
資格試験・資格取得の情報サイト・資格の学校TACのホームページ
og:type
website
og:url
https://www.tac-school.co.jp/index.html

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
AWS
CDN provider
CloudFront
IP address
18.172.78.43
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 18.172.78.43
  • 18.172.78.10
  • 18.172.78.31
  • 18.172.78.69
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
*.tac-school.co.jp
Valid from
Nov 3, 2025
Valid to
Dec 2, 2026
Days until expiry
126
SAN domains
*.tac-school.co.jp, tac-school.co.jp

Security headers

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

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 0

Links

133 internal · 58 external · 1 broken

Images

140 total · 0 missing alt

Scripts / Styles

22 scripts · 12 stylesheets

JS / CSS size

211 KB · 245 KB

Page size

131 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
8231

SEO issues

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

Accessibility issues

  • Missing viewport meta tag

Scan details

Requested URL
https://tac-school.co.jp
Final URL
https://www.tac-school.co.jp:443/
HTTP status
200
HTTP version
HTTP/2
Response time
284 ms
HTML size
131 KB
Redirect chain
https://tac-school.co.jp → https://www.tac-school.co.jp:443/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does tac-school.co.jp use?
tac-school.co.jp is built with jQuery, Apache.
Is tac-school.co.jp secure (HTTPS)?
Yes. tac-school.co.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 2, 2026.
Who hosts tac-school.co.jp?
tac-school.co.jp is hosted on AWS, behind CloudFront CDN.
What is tac-school.co.jp's SEO score?
tac-school.co.jp scored 80/100 for SEO in the latest analysis (great).
What is tac-school.co.jp's overall website score?
tac-school.co.jp has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.