playgram.jp
Playgram (プレイグラム) - 初めてから学べるプログラミング教育サービス
Last scanned Jul 26, 2026, 11:49 AM
Overall score
Fair
Summary
Preferred Networksが作るプログラミング教材。コンピュータを駆使して想像力を発揮しながら、課題を解決する楽しさ、学ぶ喜びを体感してほしいというエンジニアの�… This website uses WordPress. SEO is fair (65/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Preferred Networksが作るプログラミング教材。コンピュータを駆使して想像力を発揮しながら、課題を解決する楽しさ、学ぶ喜びを体感してほしいというエンジニアの思いを込めて「Playgram（プレイグラム）」と名付けました。
Top issues to fix
11 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+5 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
54 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Preferred Networksが作るプログラミング教材。コンピュータを駆使して想像力を発揮しながら、課題を解決する楽しさ、学ぶ喜びを体感してほしいというエンジニアの思いを込めて「Playgram（プレイグラム）」と名付けました。
Meta tags
- Title
- Playgram (プレイグラム) - 初めてから学べるプログラミング教育サービス
- Description
- Preferred Networksが作るプログラミング教材。コンピュータを駆使して想像力を発揮しながら、課題を解決する楽しさ、学ぶ喜びを体感してほしいというエンジニアの思いを込めて「Playgram（プレイグラム）」と名付けました。
- Canonical
- https://playgram.jp/
- Language
- ja
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=5, shrink-to-fit=no
- Robots meta
- max-snippet:-1, max-image-preview:large, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- tls.automattic.com
- Valid from
- Jul 6, 2026
- Valid to
- Oct 4, 2026
- Days until expiry
- 67
- SAN domains
- tls.automattic.com, 2850chelsea.co.uk, alv.boo.mybluehost.me, gerrybrowne.co.uk, hannah-chin.com, healingspring.blog, jennifermoffeit.com, lerkidi.com, lifeingrief.com, migons.com, millard-house.org, mwphysieanddance.com, playgram.jp, procureinsights.com, qarchives.com, qg30soccer.com, sunny-daze.blog, thatblondevagabond.com, thatchinnam.com, thatfestivalblogger.com, thatforeignmusicblog.international, trapitosfilos.mx, www.babykaboomer.blog, www.bmw.thg.mybluehost.me, www.bodyunitacademy.com, www.christianschittenhelm.fr, www.efs-llc.com, www.gerrybrowne.co.uk, www.hannah-chin.com, www.healingspring.blog, www.jamesrburnsphoto.com, www.jennifermoffeit.com, www.langlaufengadin.org, www.lerkidi.com, www.mechelsharmonieorkest.be, www.migons.com, www.millard-house.org, www.mwphysieanddance.com, www.playgram.jp, www.qarchives.com, www.secureamericanopportunity.org, www.sunny-daze.blog, www.thatblondevagabond.com, www.thatcouldpreach.blog, www.thatfestivalblogger.com, www.the-traveling-unicorn.com, www.trapitosfilos.mx, www.tucsonacupunctureandwellness.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 5 · H2 10 · H3 9
Links
3 internal · 6 external · 9 broken
Images
38 total · 38 missing alt
Scripts / Styles
6 scripts · 2 stylesheets
JS / CSS size
183 B · 0 B
Page size
67.8 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
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://playgram.jp
- Final URL
- https://playgram.jp
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 53 ms
- HTML size
- 67.8 KB
- Redirect chain
- https://playgram.jp
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does playgram.jp use?
- playgram.jp is built with WordPress, Nginx.
- Is playgram.jp secure (HTTPS)?
- Yes. playgram.jp uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 4, 2026.
- Who hosts playgram.jp?
- Hosting provider information for playgram.jp is not available yet.
- What is playgram.jp's SEO score?
- playgram.jp scored 65/100 for SEO in the latest analysis (fair).
- What is playgram.jp's overall website score?
- playgram.jp has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card