Weld RE-4 School District

weldre4.org · US · Issued by DigiCert

Public school system serving Colorado communities

★ 2/10EducationSmall rural school district with local recognition only

Expires in 6 monthsCMCPrior UseView PrecertASN.1 crt.sh crt.sh Precert

Certificate Summary

Fingerprint (SHA-256)9aeb2f4188cfb170dec00ebf480cf18c2ea8ae7dc7ca858cadf4785b00c7379c

Serial Number0e:0b:28:2d:14:cf:50:ac:c3:10:25:fb:5e:45:07:bd

Issued2026-03-06

Expires2026-09-20

Intermediate CADigiCert

SubjectWeld RE-4 School District, US

SANsweldre4.org · 2 certs

CT LogGorgon (DigiCert) #32571 · 2026-03-10 22:53 UTC (5 days ago)

Certificate Lint

2 errors20 passed

2 errors1 notice20 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 presentMCR §7.1.2.7 ↗

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

✓

Prior Use Source must be present for Prior Use MarkMCR §7.1.4.2 ↗

e_bimi_mark_type_dn_prior_use_source

✓

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 PSerrorMCR §7.1.2.7 ↗

viewBox is not square: 100.8x101.71 (BIMI requires 1:1 aspect ratio); Missing recommended <desc> element for accessibility; Missing explicit width/height attributes (recommended for Gmail compatibility)

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 Forum

✓

Serial number should contain at least 64 bits of entropyCABF ↗

w_bimi_serial_entropy

✓

CA-specific policy OID should be presentCABF ↗

Found DigiCert policy OID: 2.16.840.1.114412.0.2.5

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 Hash2fac708322d3890cac8cb870e5248ce6d618bf352da9752719576e4d5fc6c363

Revocation Status

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

Certificate Details

Serial Number: 0e:0b:28:2d:14:cf:50:ac:c3:10:25:fb:5e:45:07:bd

Issuer:

commonName: DigiCert Verified Mark RSA4096 SHA256 2021 CA1

organizationName: DigiCert

Validity:

Not Before: Fri, 06 Mar 2026 00:00:00 UTC

Not After: Sun, 20 Sep 2026 23:59:59 UTC

Subject:

commonName: Weld RE-4 School District

organizationName: Weld RE-4 School District

countryName: US

stateOrProvinceName: Colorado

localityName: Windsor

BIMI Mark Type: Prior Use Mark

BIMI Prior Use Source: https://web.archive.org/web/20250210015506/https://www.weldre4.org/

Jurisdiction State: Colorado

Jurisdiction Country: US

Business Category: Government Entity

Serial Number: Government Entity

Street Address: 1020 Main St

Subject Alternative Names:

DNS:weldre4.org· 2 certs

X509v3 Extensions:

Subject Key Identifier(2.5.29.14):78:94:C0:D9:4C:62:FD:7E:F2:13:47:F9:88:5C:24:4F:6D:E1:A0:8B

Subject Alternative Name(2.5.29.17):weldre4.org

Basic Constraints(2.5.29.19):CriticalCA: false

CRL Distribution Points(2.5.29.31):http://crl3.digicert.com/DigiCertVerifiedMarkRSA4096SHA2562021CA1.crl http://crl4.digicert.com/DigiCertVerifiedMarkRSA4096SHA2562021CA1.crl

Certificate Policies(2.5.29.32):DigiCert VMC Policy http://www.digicert.com/CPS BIMI Mark Certificate General Policy

Authority Key Identifier(2.5.29.35):BE:9F:BD:8D:57:6D:95:B5:AD:63:C3:97:4E:AB:A8:84:5D:3A:07:F5

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://cacerts.digicert.com/DigiCertVerifiedMarkRSA4096SHA2562021CA1.crt

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

CT Precert SCTs(1.3.6.1.4.1.11129.2.4.2):Signed Certificate Timestamps (embedded)

ASN.1 Structure

Signed Certificate Timestamps

1 SCTSingle-log transparency

Log Name	Operator	SCT Timestamp	Lag
DigiCert 'Gorgon' log	DigiCert	2026-03-06	4h

Certificate Chain

Leaf CertificateWeld RE-4 School District

Position 0

Subject: 1.3.6.1.4.1.311.60.2.1.3=US, 1.3.6.1.4.1.311.60.2.1.2=Colorado, 2.5.4.15=Government Entity, 2.5.4.5=Government Entity, C=US, ST=Colorado, L=Windsor, 2.5.4.9=1020 Main St, O=Weld RE-4 School District, CN=Weld RE-4 School District, 1.3.6.1.4.1.53087.1.13=Prior Use Mark, 1.3.6.1.4.1.53087.5.1=https://web.archive.org/web/20250210015506/https://www.weldre4.org/

Issuer: C=US, O=DigiCert\, Inc., CN=DigiCert Verified Mark RSA4096 SHA256 2021 CA1

Serial: 0e:0b:28:2d:14:cf:50:ac:c3:10:25:fb:5e:45:07:bd

SHA-256: 9aeb2f4188cfb170...00c7379c

2026-03-06 – 2026-09-20

Intermediate CADigiCert, Inc.

Position 1

Subject: C=US, O=DigiCert\, Inc., CN=DigiCert Verified Mark RSA4096 SHA256 2021 CA1

Issuer: C=US, ST=Utah, L=Lehi, O=DigiCert\, Inc., OU=www.digicert.com, CN=DigiCert Verified Mark Root CA

Serial: 0c:5b:6f:7e:eb:b3:f1:c2:ac:dd:a1:3a:98:9d:bd:82

SHA-256: 0f2024a1f5ab051c...361b930a

2021-07-01 – 2036-06-30

Root CADigiCert, Inc.

Position 2

Subject: C=US, ST=Utah, L=Lehi, O=DigiCert\, Inc., OU=www.digicert.com, CN=DigiCert Verified Mark Root CA

Issuer: C=US, ST=Utah, L=Lehi, O=DigiCert\, Inc., OU=www.digicert.com, CN=DigiCert Verified Mark Root CA

Serial: 06:c1:67:cf:eb:f4:8d:35:d6:24:10:18:5e:11:c5:eb

SHA-256: 504386c9ee8932fe...33c46b42

2019-09-23 – 2049-09-23

Raw PEM