postgresql.jp

PostGreSql.jp is a Japanese company specializing in technology needs

本会は日本におけるPostgreSQLの普及と発展を主な目的とします。具体的には以下の活動を行います。 PostgreSQLは、現在カナダのトロントに設置されたサーバ http://www.postgresql.org/を拠点に、世界中のボランティアの手によって開発されているオープンソースのリレーショナルデータベースシステム(RDBMS)です。日本におけるPostgreSQLコミュニティは1996年12月9日に石井達夫氏(当会初代理事長)がPostgreSQLのメーリングリスト(pgsql-jp)を個人的スタートしたことに始まります。(※現在このメーリングリストの運営は当会に移管されています。) read more

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Authority

6/100

Safety

84/100

0 of 2 safety checks passed (Sep 8, 2026).

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Current facts

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Trust record

Authority & Safety, with the evidence

How this is scored →

Authority 6/100 — ahead of 6% of scored sitesSome caution flags

Why this authority score

Prominence (Tranco rank #452,106; Open PageRank 2.4/10)+8
Verified continuity: no corroborating history lines+2
Security & email hygiene+2
Calibration adjustment (published map)+0

Every point maps to a sentence. These lines sum to the model score of 12/99, which is what places this site at 6/100 against every other scored site.

Safety evidence

No valid HTTPS today
Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date.

2026
Checked today — 0 of 2 safety checks passed (Sep 8, 2026).

✓ live verified Sep 8, 2026

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