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seikyo.co.jp

株式会社セイキョウ | 電気設備工事・クレーン保守・制御盤製作【茨城県日立市】

Last scanned Jul 30, 2026, 11:00 AM · 11 views

83

Overall score

Great

Summary

株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅�… This website uses WordPress. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅広い技術力でお客様の課題を解決します。ISO9001・ISO14001認証取得。

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.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+3 more issues — details in the sections below.

80

SEO

4 issue(s) found

90

Performance

1.24 s

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 22, 2026

Overall
83
SEO
80
Security
65
Performance
90
Accessibility
100

Organization

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

株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅広い技術力でお客様の課題を解決します。ISO9001・ISO14001認証取得。

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
株式会社セイキョウ | 電気設備工事・クレーン保守・制御盤製作【茨城県日立市】
Description
株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅広い技術力でお客様の課題を解決します。ISO9001・ISO14001認証取得。
Canonical
https://www.seikyo.co.jp/
Language
ja
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
max-image-preview:large
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
株式会社セイキョウ | 電気設備工事・クレーン保守・制御盤製作【茨城県日立市】
og:description
株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅広い技術力でお客様の課題を解決します。ISO9001・ISO14001認証取得。
og:type
website
og:url
https://www.seikyo.co.jp/

Twitter Card

twitter:card
summary_large_image
twitter:title
株式会社セイキョウ | 電気設備工事・クレーン保守・制御盤製作【茨城県日立市】
twitter:description
株式会社セイキョウは茨城県日立市の電気・盤・ソリューションカンパニー。電気設備工事、クレーン保守、高圧受電設備・制御盤製作、ネットワーク構築など幅広い技術力でお客様の課題を解決します。ISO9001・ISO14001認証取得。

Technologies

Detected frameworks, languages, and tools.

WordPressApache

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
GlobalSign nv-sa
Subject
www.seikyo.co.jp
Valid from
Nov 22, 2025
Valid to
Dec 24, 2026
Days until expiry
147
SAN domains
www.seikyo.co.jp, seikyo.co.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 3

Links

25 internal · 5 external · 20 broken

Images

17 total · 0 missing alt

Scripts / Styles

15 scripts · 12 stylesheets

JS / CSS size

1.6 KB · 70.4 KB

Page size

137 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
  • Meta description longer than 160 characters
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://seikyo.co.jp
Final URL
https://www.seikyo.co.jp/
HTTP status
200
HTTP version
HTTP/2
Response time
1.24 s
HTML size
137 KB
Redirect chain
https://seikyo.co.jp → https://www.seikyo.co.jp/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does seikyo.co.jp use?
seikyo.co.jp is built with WordPress, Apache.
Is seikyo.co.jp secure (HTTPS)?
Yes. seikyo.co.jp uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Dec 24, 2026.
Who hosts seikyo.co.jp?
Hosting provider information for seikyo.co.jp is not available yet.
What is seikyo.co.jp's SEO score?
seikyo.co.jp scored 80/100 for SEO in the latest analysis (great).
What is seikyo.co.jp's overall website score?
seikyo.co.jp has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
Has seikyo.co.jp's score changed over time?
seikyo.co.jp's overall score has declined by 3 points (from 86 to 83) since Jul 22, 2026.