Smpn21jakarta.sch.id SMP NEGERI 21 JAKARTA

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Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 3.15 sec.

Last Checked: 10/07/2025

smpn21jakarta.sch.id is hosted by Indonesia Network Information Center. See the list of other websites hosted by Indonesia Network Information Center.

Smpn21jakarta.sch.id is registered under .ID top-level domain. Check other websites in .ID zone.

During the last check (June 05, 2025) smpn21jakarta.sch.id has an expired SSL certificate issued by Let's Encrypt (expired on August 06, 2025), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by Let's Encrypt.

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Smpn21jakarta.sch.id Safety Information

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Unknown

Updated: 10/07/2025

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Norton Connect Safe

Safe

Updated: 01/26/2025

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Updated: 06/12/2020

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Updated: 10/07/2025

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Smpn21jakarta.sch.id SSL Information

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Domaincpcontacts.smpn21jakarta.sch.id
Issuer OrganizationLet's Encrypt
IssuerR10
AlgorithmRSA-SHA256
Valid form05/08/2025
Expiration08/06/2025
SignedCertificate is not self signed
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Smpn21jakarta.sch.id ASN Information

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ASN ID: 151592

ASN Title: Indonesia Network Information Center

Updated: 12/06/2024

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