Realurls

Spack

Also known as spack/spack. GitHub spack.

Official domains: spack.io

Identity anchored by github-history:spack/spack(age=12y,contrib=1868,stars=5118). Display name from github_org_display_name(self-declared).

spack.io verified primary · confidence 0.83 · verified 2026-09-06

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=spack org_verified=true blog=https://spack.io
 source
A8 anchor Anchored repository's homepage points here, and this site links back
repo=spack/spack org=spack repo_anchored=true homepage=https://spack.io backlink=true stars=5118 age_days=4623 contributors=1868
 source
A4 not counted TLS certificate carries the organization name (OV/EV)
subject_org= validation_type=DV issuer=Let's Encrypt san_count=2
 TLS handshake spack.io:443
B1 not counted Wikidata official-website claim (P856) on the anchored item
qid=Q92291960 label=Spack site=https://spack.io/ sitelinks=0 competing_items=0
 source
B5 corroboration Tranco top-1M ranking
rank=147269 source=top-1m list
 source
B4 corroboration Wayback Machine history
first_snapshot=2017-04-26 history_days=3420
 source
2 piece(s) of evidence not counted — why
  • A4: DV certificate carries no organization name (most modern tech companies use DV; this is expected)
  • B1: entity not anchored: no canonical Wikidata item, so an arbitrary item's P856 cannot corroborate
Reproduce this yourself
# A1 — GitHub verified this org's domain
curl -s https://api.github.com/orgs/spack | jq '{name, blog, is_verified}'

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

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

# B4 — first Wayback snapshot
curl -s "http://web.archive.org/cdx/search/cdx?url=spack.io&limit=1&output=json"

# 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 spack.io

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.