Website reputation report

schoo.jp

Last checked 2 hours ago · Point-in-time assessment

● Evidence is limited

What is this website?

Public pages were observed on schoo.jp, but their subject was not confidently classified. An About page was also found. The sampled pages were marked as Japanese-language.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

60/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure92 Website Security95 Security Hygiene35 Transparency54 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Independent evidence brief

What we observed about schoo.jp

Updated Oct 1, 2026

The latest scan examined 10 public pages on schoo.jp. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its About page, the site says: 社内活動・研修をどう行えばいいか分からない、といったお悩みをお持ちの方も多いのではないでしょうか。スクーではコンプライアンスや情報管理、5SやISOなどに関する講義を幅広く開講しています。研修の前段階で理解しておいてもらいたい、研修後に理解を深めてもらいたい、などの際にうってつけとなっています。

  • コンプライアンス・研修学習ならオンライン動画授業・講座のSchoo(スクー)社内活動・研修をどう行えばいいか分からない、といったお悩みをお持ちの方も多いのではないでしょうか。スクーではコンプライアンスや情報管理、5SやISOなどに関する講義を幅広く開講しています。研修の前段階で理解しておいてもらいたい、研修後に理解を深めてもらいたい、などの際にうってつけとなっています。
  • Schoo(スクー)とは|オンライン動画授業・講座のSchoo(スクー) - Schoo(スクー)Schooサービス紹介のページです。365日、無料のオンライン生放送授業を開催中。業界のトッププレーヤーから、変化の大きな今の社会に必要なスキルが学べます。双方向型の授業だから、身につく・続けられる。9,000本の録画授業も公開中!
  • Schoo(スクー)Schooは365日、無料のオンライン生放送授業を開催。「未来に向けて今あなたが学んでおくべきこと」をテーマに、働き方・お金・健康・テクノロジー・ビジネス・ITスキルなどの最先端を皆で一緒に学んでいきます。

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

A valid TLS certificate was observed, expiring Apr 11, 2027.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 60/100. Evidence Confidence: 70%. These measure different things.

Public content profile

Pages reviewed on schoo.jp

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Schoo(スクー) - 社会人向けオンライン学習サービス【個人のスキルアップから企業研修まで】日本最大級のコンテンツ数で、生成AI活用やビジネススキルなどあらゆる学びのニーズに対応。動画だけでなく、AI文字起こし・参加型ライブ授業・スライドなど、あなたに合った方法で学びが定着。学びやすさにこだわった講座で、学びを毎日の習慣に。 コンプライアンス・研修学習ならオンライン動画授業・講座のSchoo(スクー)社内活動・研修をどう行えばいいか分からない、といったお悩みをお持ちの方も多いのではないでしょうか。スクーではコンプライアンスや情報管理、5SやISOなどに関する講義を幅広く開講しています。研修の前段階で理解しておいてもらいたい、研修後に理解を深めてもらいたい、などの際にうってつけとなっています。 Schoo(スクー)とは|オンライン動画授業・講座のSchoo(スクー) - Schoo(スクー)Schooサービス紹介のページです。365日、無料のオンライン生放送授業を開催中。業界のトッププレーヤーから、変化の大きな今の社会に必要なスキルが学べます。双方向型の授業だから、身につく・続けられる。9,000本の録画授業も公開中! Schoo(スクー)Schooは365日、無料のオンライン生放送授業を開催。「未来に向けて今あなたが学んでおくべきこと」をテーマに、働き方・お金・健康・テクノロジー・ビジネス・ITスキルなどの最先端を皆で一緒に学んでいきます。 【新機能リリース】対人スキルを実践的に身につける「AIロープレ」機能をリリースしました - スクーからのお知らせhttps://schoo.jp/news/2026/2026-10-01-09-00-00 9月10日(木)21時放送予定の再放送授業の中止について - スクーからのお知らせhttps://schoo.jp/news/2026/2026-09-10-21-00-00 【無料公開中】2026年8月の人気授業TOP10 - スクーからのお知らせ【無料公開中】2026年8月の人気授業TOP10 お知らせ - Schoo(スクー)スクーからのお知らせです。 まとめ記事一覧 - Schoo(スクー)デザイナーやビジネスマン、英語学習などに役立つ情報をまとめました スクーに登録する - Schoo(スクー)Schooは365日、無料のオンライン生放送授業を開催。「未来に向けて今あなたが学んでおくべきこと」をテーマに、働き方・お金・健康・テクノロジー・ビジネス・ITスキルなどの最先端を皆で一緒に学んでいきます。

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
92/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
35/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
54/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLLocal antivirus is not enabled
Phishing.Database · exact hostnameLocal feed snapshot unavailable

Sampled scripts and pages

Resource antivirus is not enabled

0 resources checked · 12 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts12
Inline scripts11
Embedded frames1
External script hosts6

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domainschoo.jp
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address3.162.3.119
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNAmazon CloudFront
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://schoo.jp/
Endpoint3.162.3.119
NetworkUnavailable
CDN and WAFAmazon CloudFront · Not detected
DNS surface23 records · 4 nameservers · 5 mail exchangers
Protection signals0 security headers · 3 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size205,487 bytes
HTTP check duration1,000 ms
Cookies observed6
Script resources12 · 6 external hosts
Frames and sampled checks1 frames · 0 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Amazon, commonName=Amazon RSA 2048 M04
Valid fromSep 26, 2026
Valid untilApr 11, 2027
Certificate names*.schoo.jp · schoo.jp

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A3.162.3.119TTL —
A3.162.3.16TTL —
A3.162.3.35TTL —
A3.162.3.9TTL —
NSns-119.awsdns-14.comTTL —
NSns-1196.awsdns-21.orgTTL —
NSns-1808.awsdns-34.co.ukTTL —
NSns-985.awsdns-59.netTTL —
MX1 aspmx.l.google.comTTL —
MX10 alt3.aspmx.l.google.comTTL —
MX10 alt4.aspmx.l.google.comTTL —
MX5 alt1.aspmx.l.google.comTTL —
MX5 alt2.aspmx.l.google.comTTL —
TXTgoogle-site-verification=9tHkWbLdK_E4oiXu566ff3UjlL6FA4EAxEZGzd-6tMoTTL —
TXTgoogle-site-verification=egyW375cxEVqWKb_Y7CWTdcvsb4ldaKQnAwpW-yq4wsTTL —
TXTgoogle-site-verification=h2sFAaNVrWsgfZM1jOGo7tJdzt2lqF7ZyShzopho89MTTL —
TXTgoogle-site-verification=Jc0akraC6zEgvx9i4-QtwZiP14kqxbgVy1lqmWPXLeYTTL —
TXTgoogle-site-verification=QpgegbWRffoyP34BbVTALu6R3RJ0VXdbg9PWeDGxX4MTTL —
TXTMS=5C876A8D9EC238D49C302792FBC8348A77460A9DTTL —
TXTMS=ms67618874TTL —
TXTstripe-verification=0a820a33fe9b9f74b1ba64da4ba9b1b32690a6fd19888841e0ae8db83aba2590TTL —
TXTstripe-verification=ab57228487104bc54b43f116f6a3a7cfc30a82d19b54afc3b9cea7bc8360fd34TTL —
TXTv=spf1 +ip4:54.199.182.105 +ip4:182.161.76.48 +ip4:54.199.186.64 +ip4:209.85.220.69 include:amazonses.com include:mktomail.com include:_spf.google.com include:mail.zendesk.com include:_spf.salesforce.com include:spf.mta.hdems.com ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCDMARC policy applies to a sample of messages

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

0 observed

Header evidence is unavailable. Missing data is not treated as a clean result or proof of compromise.

Response headers

Cookie protections

Passive observation
Cookies observed6
Missing Secure6
Missing HttpOnly6
Missing SameSite6

Only cookie attribute counts are retained. Cookie names and values are never stored. These observations are not proof of compromise and do not independently change the Safety Score.

Detected stack

Technologies

jQuery 1.11.0 82% Nginx 93% Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

Recommended maintenance checks

jQueryConfirm the observed jQuery version is supported by your application and update it through your normal dependency process.
NginxReview the Nginx branch and keep security patches current. Avoid exposing detailed server version headers.

About this website

What the site says about itself

社内活動・研修をどう行えばいいか分からない、といったお悩みをお持ちの方も多いのではないでしょうか。スクーではコンプライアンスや情報管理、5SやISOなどに関する講義を幅広く開講しています。研修の前段階で理解しておいてもらいたい、研修後に理解を深めてもらいたい、などの際にうってつけとなっています。

View the site's About page ↗

This is publisher supplied information. The independent safety findings are shown separately.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Emailbiz-support@schoo.jpSource: https://schoo.jp/contact

Structured facts

Website identity & response

Public page metadata
Page titleSchoo(スクー) - 社会人向けオンライン学習サービス
First headingSchooの特徴
Description【個人のスキルアップから企業研修まで】日本最大級のコンテンツ数で、生成AI活用やビジネススキルなどあらゆる学びのニーズに対応。動画だけでなく、AI文字起こし・参加型ライブ授業・スライドなど、あなたに合った方法で学びが定着。学びやすさにこだわった講座で、学びを毎日の習慣に。
Canonical URLhttps://schoo.jp
Final URLhttps://schoo.jp/
HTTP response200 · text/html; charset=UTF-8 · 1000 ms
Languageja
Structured typesNone observed
Page page detectedhttps://schoo.jp/news/2026/2026-10-01-09-00-00About page detectedhttps://schoo.jp/class/category/company/Contact page detectedhttps://schoo.jp/contact
1100% evidence confidence
1100% evidence confidence
ja100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
6100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
5100% evidence confidence
4100% evidence confidence
23100% evidence confidence
6100% evidence confidence
6100% evidence confidence
4100% evidence confidence
6100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.hsts present100% evidence confidence
Local headers.permissions policy present100% evidence confidence

Connection path

Redirect chain

0 recorded hops

No redirect hop was recorded for the sampled homepage.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
bright-harbor-mesh-940

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

No meaningful changes recorded yet.

Website icon for schoo.jp

Visual evidence

Website screenshot

Screenshot of schoo.jp
Earlier browser capture retained because this scan did not produce a usable replacement. It is not fresh scan evidence.

For site owners

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Questions about schoo.jp

FAQ

Still have questions? Contact us →
Is schoo.jp safe to visit?

The latest Safety Score is 60/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on schoo.jp?

External threat-provider coverage was unavailable for this scan, so malware status is unverified.

When was schoo.jp registered?

The registry lookup did not provide a reliable creation date in this scan.

Did schoo.jp have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

How does schoo.jp describe itself?

The website's About page describes its purpose in the report above. This is publisher-supplied information and is separate from independent security findings.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.