INTERNATIONAL SCHOOLING PTE. LTD.

internationalschooling.org · SG · Issued by SSL Corporation

International school providing K-12 education services

★★ 4/10EducationEstablished educational organization, recognized regionally in Singapore

PrecertExpires in 12 monthsVMCRegisteredView Final CertASN.1 crt.sh crt.sh Final

Certificate Summary

Fingerprint (SHA-256)aabe1133d66672ca58f4a1c6fc79407c1b446d6572517f299afbea5fc18006f9

Serial Number16:0e:46:13:a5:37:36:14:18:b9:e7:d7:17:f0:c9:2e

Issued2026-03-10

Expires2027-03-10

Intermediate CASSL Corporation

SubjectINTERNATIONAL SCHOOLING PTE. LTD., SG

SANsinternationalschooling.org · 2 certs

CT LogGorgon (DigiCert) #32472 · 2026-03-10 21:55 UTC (5 days ago)

Certificate Lint

2 errors1 warning21 passed

2 errors1 warning1 notice21 passed

MCR (Mark Certificate Requirements)2 fails

✓

EKU must contain BIMI OIDMCR §7.1.2.7 ↗

e_bimi_eku_present

✓

EKU must contain only BIMI OIDMCR §7.1.2.7 ↗

e_bimi_eku_single

✓

Name Constraints must not be presentMCR §7.1.2.7 ↗

e_bimi_no_name_constraints

✗

Key Usage must include digitalSignatureerrorMCR §7.1.2.7 ↗

Key Usage extension is missing

e_bimi_key_usage

✓

Validity period must not exceed 825 daysMCR §6.3.2 ↗

e_bimi_validity_period

✗

SCT List extension must be presenterrorMCR §7.1.2.7 ↗

SCT List extension is missing

e_bimi_sct_present

✓

Pilot ID extension must not be presentMCR §7.1.2.7 ↗

e_bimi_pilot_id_absent

✓

BIMI General Policy OID must be presentMCR §7.1.6.4 ↗

e_bimi_general_policy

✓

CPS URL must be present in certificate policiesMCR §7.1.6.4 ↗

e_bimi_cps_url_present

✓

Mark type must be present and validMCR §7.1.4.2.2 ↗

e_bimi_mark_type_valid

✓

Trademark Office must be present for Registered MarkMCR §7.1.4.2 ↗

e_bimi_mark_type_dn_trademark_office

✓

Trademark Country must be present for Registered MarkMCR §7.1.4.2 ↗

e_bimi_mark_type_dn_trademark_country

✓

Trademark Registration ID must be present for Registered MarkMCR §7.1.4.2 ↗

e_bimi_mark_type_dn_trademark_registration_id

✓

Logotype extension must be presentMCR §7.1.2.7 ↗

e_bimi_logotype_present

✓

Logotype must contain data: URIMCR §7.1.2.7 ↗

e_bimi_logotype_data_uri

✓

SVG must be gzip-compressedMCR §7.1.2.7 ↗

e_bimi_svg_compressed

✓

SVG must conform to SVG Tiny PSMCR §7.1.2.7 ↗

e_bimi_svg_tiny_ps

—

RSA key must be at least 2048 bitsMCR §6.1.5 ↗

w_bimi_rsa_key_size

✓

ECDSA key must use P-256 or P-384MCR §6.1.5 ↗

w_bimi_ecdsa_curve

✓

Signature hash should be SHA-256 or strongerMCR §6.1.5 ↗

w_bimi_sig_hash

RFC 5280 (X.509)

✓

Certificate must not be a CARFC 5280 §4.2.1.9 ↗

e_bimi_basic_constraints

—

Key Usage extension must be criticalRFC 5280 §4.2.1.3 ↗

e_bimi_key_usage_critical

CA/Browser Forum1 fail

✓

Serial number should contain at least 64 bits of entropyCABF ↗

w_bimi_serial_entropy

✗

CA-specific policy OID should be presentwarningCABF ↗

No known CA-specific VMC policy OID found

w_bimi_ca_policy_oid

RFC 3709 (Logotype)1 fail

✓

Logotype extension must not be criticalRFC 3709 §2.1 ↗

e_bimi_logotype_not_critical

✓

Logotype must contain a hashRFC 3709 §2.1 ↗

e_bimi_logotype_hash_present

✗

Logotype hash should use SHA-256noticeRFC 3709 §2.1 ↗

Logotype uses SHA-1 hash; SHA-256 recommended for stronger integrity

n_bimi_logotype_hash_sha256

Embedded Logo

SVG Hashab2c894e2970904185fcc422b93ebc42f390ea606eed99f8b98044d1523b6400

Revocation Status

No OCSP or CRL endpoints found in this certificate's extensions.

Certificate Details

Serial Number: 16:0e:46:13:a5:37:36:14:18:b9:e7:d7:17:f0:c9:2e

Issuer:

commonName: SSL.com VMC Issuing RSA CA 1

organizationName: SSL Corporation

Validity:

Not Before: Tue, 10 Mar 2026 21:45:36 UTC

Not After: Wed, 10 Mar 2027 21:45:36 UTC

Subject:

organizationName: INTERNATIONAL SCHOOLING PTE. LTD.

countryName: SG

localityName: Singapore

BIMI Trademark Office: Office of the Controller General of Patents, Designs and Trade Marks

BIMI Trademark Country: IN

BIMI Trademark ID: 3669640

BIMI Mark Type: Registered Mark

Jurisdiction Country: SG

Business Category: Private Organization

Serial Number: 201726336K

Street Address: 111 Somerset Road

Subject Alternative Names:

DNS:internationalschooling.org· 2 certs

X509v3 Extensions:

Subject Key Identifier(2.5.29.14):00:2D:B7:63:63:EF:22:CF:A5:06:5A:7D:E2:84:B3:79:DA:2A:EF:A5

Subject Alternative Name(2.5.29.17):internationalschooling.org

Basic Constraints(2.5.29.19):CriticalCA: false

CRL Distribution Points(2.5.29.31):http://crls.ssl.com/SSL.com-VMC-I-R1.crl

Certificate Policies(2.5.29.32):1.3.6.1.4.1.38064.1.3.8 https://www.ssl.com/repository BIMI Mark Certificate General Policy

Authority Key Identifier(2.5.29.35):B9:2C:B9:90:28:C0:CA:E2:B8:10:56:6E:E4:70:68:17:9D:54:73:BB

Extended Key Usage(2.5.29.37):Brand Indicator for Message Identification (BIMI)

Authority Information Access(1.3.6.1.5.5.7.1.1):CA Issuers: http://cert.ssl.com/SSL.com-VMC-I-R1.cer

Logotype (BIMI)(1.3.6.1.5.5.7.1.12):Embedded SVG logotype (see Logo section)

CT Precert Poison(1.3.6.1.4.1.11129.2.4.3):CriticalPrecertificate poison (critical)

ASN.1 Structure

Certificate Chain

Leaf CertificateINTERNATIONAL SCHOOLING PTE. LTD.

Position 0

Subject: C=SG, L=Singapore, O=INTERNATIONAL SCHOOLING PTE. LTD., 2.5.4.5=201726336K, 1.3.6.1.4.1.53087.1.13=Registered Mark, 1.3.6.1.4.1.53087.1.3=IN, 1.3.6.1.4.1.53087.1.2=Office of the Controller General of Patents\, Designs and Trade Marks, 1.3.6.1.4.1.53087.1.4=3669640, 2.5.4.15=Private Organization, 2.5.4.9=111 Somerset Road, 1.3.6.1.4.1.311.60.2.1.3=SG

Issuer: C=US, O=SSL Corporation, CN=SSL.com VMC Issuing RSA CA 1

Serial: 16:0e:46:13:a5:37:36:14:18:b9:e7:d7:17:f0:c9:2e

SHA-256: aabe1133d66672ca...c18006f9

2026-03-10 – 2027-03-10

Intermediate CASSL Corporation

Position 1

Subject: C=US, O=SSL Corporation, CN=SSL.com VMC Issuing RSA CA 1

Issuer: C=US, O=SSL Corporation, CN=SSL.com VMC RSA Root CA 2024

Serial: 1e:f7:df:5c:bf:c4:53:ed:0a:c4:2f:35:f2:e6:5e:2b

SHA-256: 4b755c0495431f13...1ca7ae64

2024-03-26 – 2034-03-24

Root CASSL Corporation

Position 2

Subject: C=US, O=SSL Corporation, CN=SSL.com VMC RSA Root CA 2024

Issuer: C=US, O=SSL Corporation, CN=SSL.com VMC RSA Root CA 2024

Serial: 70:94:6f:ae:be:b3:cc:e0:d8:6f:b8:76:77:80:61:cb

SHA-256: 8f9d1b7698886782...154bd30d

2024-02-19 – 2048-02-13

Raw PEM