Is jkb.co.id legit or a scam?
Official website for Jati Kencana Beton, a legitimate Indonesian construction firm with over 40 years of operational history and no security flags.
Analysis Summary
No threats detected
All checks passed. This site appears legitimate — but always stay alert for phishing even on trusted domains.
Website Preview

Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site. See full visual analysis →
Visual Screenshot Analysis
We capture a fresh screenshot of the live page and ask a vision model to look for scam visual patterns — fake trust badges, countdown timers, overlay pop-ups, and visual clones of legitimate brands.
Visual red flags detected in the screenshot
The website appears to be a legitimate corporate page for an Indonesian construction materials company, showing no visual indicators of scamming or phishing.
What our vision model saw
5 signalsProfessional corporate layout for a construction/concrete company
Functional navigation menu with industry-specific categories
High-quality original imagery of industrial equipment and branded vehicles
Visible WhatsApp contact widget in the bottom right corner
Clear call-to-action buttons for consultation and contact
MT Intelligence
The domain has been registered for over 10 years, which is a strong indicator of stability and legitimacy. Our research confirms the site belongs to CV Jati Kencana, a company established in 1980 that operates multiple concrete batching plants across Central Java. The page content is highly professional, featuring original industrial photography and specific technical details about their concrete and stone products. All antivirus engines in our network report the site as clean. While there was a historical report of a sub-domain being misused for malware, the main corporate site shows no current signs of compromise or malicious intent.
Web Research Findings
Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for jkb.co.id, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.
- jkb.co.id is the official website of CV Jati Kencana / Jati Kencana Beton (JKB), a Central Java-based supplier of construction materials including batu split, pasir, beton ready mix, and precast concrete.
- Company founded in 1980 as CV Jati Kencana (initially stone grinding under trade name Selo Arto); expanded into ready-mix concrete in 2001 under JKB brand.
- Current operations: 7 batching plants (60m³/hour capacity each), ~600 employees, 200 vehicles, >20 hectares andesite mine; serves projects across Central Java with branches in Semarang, Ungaran, etc.
- ISO 9001:2015 certified in 2022; materials sourced from licensed official mines; emphasizes quality, GPS-tracked delivery, and standardization.
- Contact: info@jkb.co.id, WhatsApp +628112512233, office at Jl. Jurusan PTP Ngobo Km. 2, Karangjati, Bergas, Kab. Semarang, Jawa Tengah.
- No scam reports, customer complaints, or negative reviews found across web searches including Indonesian terms like "penipuan" or "komplain".
- Related subdomain hrd.jkb.co.id previously flagged for Pikabot trojan (malware hosting, not the main business site); one unrelated Instagram post misidentified jkb.co.id as a slot gambling site.
Operates as CV Jati Kencana (established 1980), trading as Jati Kencana Beton (JKB). ISO 9001:2015 certified since 2022. Has SBU contractor certifications, NIB verified, active in construction materials sector in Central Java.
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
Contact Verification
We fetched the page and looked for real-world contact details. Legitimate businesses almost always publish an email on their own domain, a phone number, and a postal address. Scam shops usually don't.
- No postal address visible on the page.
- Contact email on the site's own domain (info@jkb.co.id).
- Phone number listed ((0298) 522323).
- Links to 19 social profiles.
Domain & Encryption
Redirect Chain
- 1301http://jkb.co.id/
- 2200https://jkb.co.id/
Server Reputation
Still, stay alert
No major threat indicators — but a clean scan does not guarantee every page is safe, and phishing emails routinely spoof real domains.
- Double-check the exact URL in your address bar
Confirm you are actually on jkb.co.id and not a lookalike like j-kb.co.id.com or an IDN homoglyph.
- Use a password manager
Password managers only auto-fill on the exact domain they were saved for — they refuse to fill lookalike domains, which is the single best phishing defence.
- OpenDiscuss this site on the forum
If you have first-hand experience with this site — good or bad — share it with the MalwareTips community.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
Referenced Domains
Outbound domains this page links to or loads resources from. Each links to its own security scan.
Safety FAQ
Common questions about this site, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.
- Our automated security review found no threat indicators on jkb.co.id. The site appears legitimate based on the signals we checked, but always stay alert for phishing emails that spoof real domains.
- jkb.co.id passed our automated security checks with a trust score of 94/100. No antivirus engines or major blacklists flagged the site at the time of the last scan.
- Yes. jkb.co.id presents a valid TLSv1.3 certificate issued by Let's Encrypt · YR1, expiring in 84 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
- jkb.co.id is 10.3 years old, registered on 2/29/2016 through PT Jetcoms Netindo. Scam domains are often freshly registered — a site under 6 months old warrants extra caution.
- No. All 92 antivirus engines in our malware network report jkb.co.id as clean.
- No. jkb.co.id is not currently listed on the major browser blocklist feeds that modern browsers use.
- jkb.co.id resolves to an IP operated by CV. Rumahweb Indonesia in ID (usage type: Data Center/Web Hosting/Transit). Hosting location alone doesn't make a site good or bad, but unusual geography for a brand's claimed country is one of many signals we weigh.
- This is a permanent record of the scan run on June 29, 2026. The verdict and evidence above reflect that scan and do not change on their own. If circumstances around jkb.co.id have changed, MalwareTips staff can run a fresh scan, which re-runs every check from scratch and publishes an updated report.
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