Realurls

Espressif Systems

Also known as esp idf, esp-idf, espressif. Wikidata Q21095035. GitHub espressif.

Official domains: espressif.com

Identity anchored by wikidata:Q21095035/P856 github-history:espressif/esp-idf(age=10y,contrib=1295,stars=18951). Display name from wikidata:Q21095035.

espressif.com verified primary · confidence 0.83 · verified 2026-09-05

1 independent anchor(s) + 2 independent corroboration(s): meets the verified threshold

EvidenceWhat it shows
A1 anchor GitHub verified this organization's domain (DNS-level check performed by GitHub)
org=espressif org_verified=true blog=http://espressif.com
 source
A8 not counted Anchored repository's homepage points here, and this site links back
repo=espressif/esp-idf org=espressif repo_anchored=true homepage= backlink=true stars=18951 age_days=3671 contributors=1295
 source
A3 not counted Corporate registrar fingerprint (brand-protection registrar, long prepaid term, registry locks)
registrar=GoDaddy.com, LLC created=2007-08-10 expires=2027-08-10 remaining_days=338 locks=["delete","renew","transfer","update"]
 source
A4 not counted TLS certificate carries the organization name (OV/EV)
subject_org=乐鑫信息科技（上海）股份有限公司 validation_type=OV issuer=DigiCert Inc san_count=2
 TLS handshake espressif.com:443
B1 corroboration Wikidata official-website claim (P856) on the anchored item
qid=Q21095035 label=Espressif Systems site=http://espressif.com/ sitelinks=10 competing_items=0
 source
B5 corroboration Tranco top-1M ranking
rank=5151 source=top-1m list
 source
3 piece(s) of evidence not counted — why
  • A8: repository homepage () does not point to this domain
  • A3: registrar (GoDaddy.com, LLC) is not a brand-protection registrar
  • A4: certificate organization (乐鑫信息科技（上海）股份有限公司) is not the anchored entity (Espressif Systems, espressif)
Reproduce this yourself
# A1 — GitHub verified this org's domain
curl -s https://api.github.com/orgs/espressif | jq '{name, blog, is_verified}'

# A8 — anchored repo's homepage
curl -s https://api.github.com/repos/espressif/esp-idf | jq '{homepage, created_at, stargazers_count}'

# A3 — registrar / dates / locks
curl -sL https://rdap.org/domain/espressif.com | jq '{status, events, registrar: [.entities[]|select(.roles[]=="registrar")|.vcardArray[1][1][3]]}'

# B1 — Wikidata P856
curl -s "https://www.wikidata.org/w/api.php?action=wbgetclaims&entity=Q21095035&property=P856&format=json"

# B5 — Tranco rank
curl -s https://tranco-list.eu/api/ranks/domain/espressif.com

# Re-run the whole pipeline for this domain
git clone https://github.com/zhouchungong/realurls-registry && cd realurls-registry && pip install -e . && python -m src.verify espressif.com

Think this is wrong? Open a dispute — the burden of proof is on us, and the record is downgraded while we check. Source record: YAML.