Website reputation report

jck.nl

Last checked 8 hours ago · Point-in-time assessment

● Evidence is limited

What is this website?

Public pages were observed on jck.nl, but their subject was not confidently classified. Recurring page-metadata topics include joods cultureel kwartier, het joods, bezoek.

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

77/100Safety Score
75%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History95 Infrastructure93 Website Security95 Security Hygiene70 Transparency52 Reputation50 Operational Stability96
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 jck.nl

Updated Oct 2, 2026

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

Purpose and visible content

On its homepage, the site says: Joods Cultureel Kwartier. Vier eeuwen Joodse cultuur op vier locaties op één vierkante kilometer. Bezoek het JCK in Amsterdam en ontdek meer.

Registrar and domain history

Registered on Dec 31, 1999. Registrar: White Label Domain.

Connection and hosting evidence

The checked homepage returned HTTP 200.

A valid TLS certificate was observed, expiring Dec 7, 2026.

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: 77/100. Evidence Confidence: 75%. These measure different things.

Public content profile

Pages reviewed on jck.nl

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.

Joodse Cultuur op vier locaties | Joods Cultureel KwartierJoods Cultureel Kwartier. Vier eeuwen Joodse cultuur op vier locaties op één vierkante kilometer. Bezoek het JCK in Amsterdam en ontdek meer. Contact | Joods Cultureel KwartierJoods Cultureel Kwartier. Vier eeuwen Joodse cultuur op vier locaties op één vierkante kilometer. Bezoek het JCK in Amsterdam en ontdek meer. Plan je bezoek | Joods Cultureel KwartierPlan je bezoek aan het Joods Cultureel Kwartier. Hier vind je alle praktische informatie zoals entreeprijzen, openingstijden en adressen. Kies je ticketsoort | Joods Cultureel KwartierKoop een ticket voor je bezoek aan het Joods Cultureel Kwartier. Nationaal Holocaustmuseum. Joods Museum. Portugese Synagogoe Agenda | Joods Cultureel KwartierBen jij benieuwd wat er in de aankomende maanden op de agenda staat in het Joods Cultureel Kwartier? Rondleidingen of activiteiten? Je kunt ze hier vinden! Kinderactiviteiten in het Joods Cultureel… | Joods Cultureel KwartierZoek je naar kinderuitjes? In het Joods Museum junior bieden we leuke activiteiten voor kinderen vanaf 6 jaar. Hier kan je samen leuke dingen doen. Groepsuitje bij het JCK | Joods Cultureel KwartierGroepsuitje samen met je familie, collega's of vrienden? Maak dan een groepsreservering bij het Joods Cultureel Kwartier. Bezoek met school | Joods Cultureel KwartierZoek je een klassen uitje? Van kleuterklas tot HBO, in het Joods Cultureel Kwartier ontdek je alles wat je altijd al wilde weten over het jodendom. Veelgestelde vragen | Joods Cultureel KwartierOm je zo snel mogelijk te helpen hebben we de veelgestelde vragen over het Joods Cultureel Kwartier alvast op een rij gezet. Word vriend | Joods Cultureel KwartierJoods Cultureel Kwartier. Vier eeuwen Joodse cultuur op vier locaties op één vierkante kilometer. Bezoek het JCK in Amsterdam en ontdek meer.

Public page evidence

Topics and keywords observed on jck.nl

12 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

joods cultureel kwartierTitle, Meta description10 sampled pages
het joodsTitle, Meta description7 sampled pages
bezoekTitle, H1, Meta description6 sampled pages
joodse cultuur opTitle, H1, Meta description3 sampled pages
vierTitle, H1, Meta description4 sampled pages
op vier locatiesTitle, Meta description3 sampled pages
op één vierkanteH1, Meta description3 sampled pages
vier eeuwen joodseH1, Meta description3 sampled pages
in hetTitle, Meta description3 sampled pages
vierkante kilometerH1, Meta description3 sampled pages
amsterdam en ontdekMeta description3 sampled pages
kilometer bezoek hetMeta description3 sampled pages

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%
95/100

Domain registration age and expiry were checked.

InfrastructureWeight 10%
93/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
70/100

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%
52/100

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%
96/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-10-02T06:26:12+00:00
HTML bytes submitted602,201
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-10-02T06:00:06+00:00
Hosts in local snapshot386,078

Sampled scripts and pages

Resource analysis incomplete

2 resources checked · 1 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 scripts1
Inline scripts2
Embedded frames0
External script hosts0

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

Partial analysis. Only the first 512 KiB of the page were inspected.

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 domainjck.nl
RegistrarWhite Label Domain
RegisteredDec 31, 1999
Domain age26 years
ExpiresUnavailable
Registry statusesactive
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address185.173.20.179
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
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://jck.nl/
Endpoint185.173.20.179
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface13 records · 3 nameservers · 1 mail exchangers
Protection signals3 security headers · 4 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 size602,201 bytes
HTTP check duration0 ms
Cookies observedUnavailable
Script resources1 · 0 external hosts
Frames and sampled checks0 frames · 2 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Let's Encrypt, commonName=YR1
Valid fromSep 8, 2026
Valid untilDec 7, 2026
Certificate namesjck.nl

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.

A185.173.20.179TTL —
AAAA2a0b:3100:20::82TTL —
NSns1.dnsshop.orgTTL —
NSns2.dnsshop.euTTL —
NSns3.dnsshop.nlTTL —
MX10 jck-nl.mail.protection.outlook.comTTL —
TXTadobe-idp-site-verification=2e907f2a50fab0e0ae4c3cd7e1829490b1c48c47700f0b62696e35f493e56b8dTTL —
TXTamazonses:F+PkJPpRQ92jn75G7OKCJKLswGGnlxMICvbCpc9JnBA=TTL —
TXTapple-domain-verification=DnHuUgXceRBM84QATTL —
TXTfacebook-domain-verification=apsx0rr1wjivnvnxitb5me5eycp4w9TTL —
TXTgoogle-site-verification=HC04czQ6orqE6YaVvIxZu-YYUcqDlim4SdzrBeIEtfcTTL —
TXTMS=ms80509586TTL —
TXTv=spf1 include:spf.protection.outlook.com include:spf-westeu.emailsignatures365.com include:spf.afas.online include:_spf.exsilia.net -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
DMARCPolicy record observed, not fully validated

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

3 observed
referrer-policypresent same-origin
strict-transport-securitypresent max-age=63072000
x-content-type-optionspresent nosniff

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Google Tag Manager 96% Nginx 93% Tailwind CSS 72% Vue.js 78%

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

NginxReview the Nginx branch and keep security patches current. Avoid exposing detailed server version headers.
Vue.jsKeep Vue and build dependencies current and review third-party packages included in the production bundle.

Publisher supplied

Public contact details

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

Phone+31205310310Source: https://jck.nl/organisatie/contact
Emaildagcoordinatie@jck.nlSource: https://jck.nl/plan-je-bezoek
Emailservice@jck.nlSource: https://jck.nl/groepen-en-rondleidingen
Emailinfo@esnoga.comSource: https://jck.nl/veelgestelde-vragen
Emailjoodsmonument@jck.nlSource: https://jck.nl/veelgestelde-vragen
Emailgerben.post@jck.nlSource: https://jck.nl/veelgestelde-vragen

Structured facts

Website identity & response

Public page metadata
Page titleJoodse Cultuur op vier locaties | Joods Cultureel Kwartier
First headingVier eeuwen Joodse cultuur op één vierkante kilometer
DescriptionJoods Cultureel Kwartier. Vier eeuwen Joodse cultuur op vier locaties op één vierkante kilometer. Bezoek het JCK in Amsterdam en ontdek meer.
Canonical URLhttps://jck.nl/
Final URLhttps://jck.nl/
HTTP response200 · text/html;charset=utf-8 · duration unavailable
Languagenl
Structured typesFAQPage · Question
Page page detectedhttps://jck.nl/plan-je-bezoekContact page detectedhttps://jck.nl/organisatie/contact
1100% evidence confidence
nl100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.cors present100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
1100% evidence confidence
3100% evidence confidence
13100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
2100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.hsts include subdomains100% evidence confidence
63072000100% evidence confidence
Local headers.hsts preload100% evidence confidence
1100% 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
deep-orbit-ring-344

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 jck.nl

Visual evidence

Website screenshot

Screenshot of jck.nl
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

Show your verified trust report

Place this lightweight badge in your footer to show visitors an independent, dated WebsiteVirusScanner report. It can increase visitor confidence, but it never changes or guarantees the score.

Choose a badge style
Preview on your site
WebsiteVirusScanner trust badge preview

Use the current report link so visitors can verify the evidence. A badge is a transparency signal, not a paid ranking boost.

Questions about jck.nl

FAQ

Still have questions? Contact us →
Is jck.nl safe to visit?

The latest Safety Score is 77/100 with 75% 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 jck.nl?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was jck.nl registered?

The public registry record shows Dec 31, 1999. Registration details may be privacy-protected or updated later.

Did jck.nl 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.

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.