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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 22, 2026, 8:12 PM

86

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 hosted on GMOCL - GMO GlobalSign Holdings K.K., JP. SEO is excellent (90/100) 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。

Japan
Hosted on GMOCL - GMO GlobalSign Holdings K.K., JP

Top issues to fix

6 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.

90

SEO

2 issue(s) found

90

Performance

2.80 s

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.

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

CDN provider
—
IP address
153.122.205.2
ASN
AS131921 (GMOCL - GMO GlobalSign Holdings K.K., JP)

DNS records

TypeValue
A
  • 153.122.205.2
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
154
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 · 0 broken

Images

17 total · 0 missing alt

Scripts / Styles

15 scripts · 12 stylesheets

JS / CSS size

136 KB · 149 KB

Page size

137 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
1
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters

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
2.80 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?
seikyo.co.jp is hosted on GMOCL - GMO GlobalSign Holdings K.K., JP.
What is seikyo.co.jp's SEO score?
seikyo.co.jp scored 90/100 for SEO in the latest analysis (excellent).
What is seikyo.co.jp's overall website score?
seikyo.co.jp has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.