Realurls

Zulip

Wikidata Q23680052. GitHub zulip.

Official domains: zulip.com

Identity anchored by wikidata:Q23680052/P856 wikidata:Q23680052/P2037. Display name from wikidata:Q23680052.

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

correlated anchors merged: A8 not independent of the kept one, counted once · 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=zulip org_verified=true blog=https://zulip.com
 source
A8 anchor Anchored repository's homepage points here, and this site links back
repo=zulip/zulip org=zulip repo_anchored=true homepage=https://zulip.com backlink=true stars=25844 age_days=3998 contributors=1336
 source
A3 not counted Corporate registrar fingerprint (brand-protection registrar, long prepaid term, registry locks)
registrar=NameCheap, Inc. created=2010-12-01 expires=2026-12-01 remaining_days=86 locks=["transfer"]
 source
A4 not counted TLS certificate carries the organization name (OV/EV)
subject_org= validation_type=DV issuer=Amazon san_count=2
 TLS handshake zulip.com:443
B1 corroboration Wikidata official-website claim (P856) on the anchored item
qid=Q23680052 label=زوليب site=https://zulip.com/ sitelinks=9 competing_items=0
 source
B5 corroboration Tranco top-1M ranking
rank=59989 source=top-1m list
 source
2 piece(s) of evidence not counted — why
  • A3: registrar (NameCheap, Inc.) is not a brand-protection registrar
  • A4: DV certificate carries no organization name (most modern tech companies use DV; this is expected)
Reproduce this yourself
# A1 — GitHub verified this org's domain
curl -s https://api.github.com/orgs/zulip | jq '{name, blog, is_verified}'

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

# A3 — registrar / dates / locks
curl -sL https://rdap.org/domain/zulip.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=Q23680052&property=P856&format=json"

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