Trend User growth trend Review user movement across collected snapshots.
User Growth Over Time 89K 92K 95K 98K 101K 2026年7月18日 2026年7月21日 2026年7月24日 Latest: 90K
Rating trend 7-day rating trend View collected rating snapshots from the latest 7-day window to assess rating stability.
7-day rating change 2.90 2.95 3.00 3.05 3.10 2026年7月18日 2026年7月21日 2026年7月24日 Latest: 3.00
2026年7月18日 2026年7月24日
Growth overview Daily, weekly, and monthly growth Compare 1-day, 7-day, and 30-day net growth and growth rate.
30-day growth Declining
-10K -10% Technical snapshot Version, languages, and crawl freshness Review publication date, version, supported languages, and crawl timestamps.
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Languages 0 Unknown
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Overview Product summary Review the store description, core capabilities, and common use cases.
調達ポータル・政府電子調達システム（GEPS）で電子証明書によるログイン、署名等を行うためのアプリケーションです。
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Related products Similar and related extensions Review related products from the Chrome Web Store detail page.
No related extensions are available yet
AI product read Bridge extension for Japanese Government Electronic Procurement System (GEPS) enabling electronic certificate-based authentication and digital signing via IC cards and certificate files Government procurement portals (geps.go.jp, p-portal.go.jp) require electronic certificate-based login and document signing that cannot be handled by standard browser capabilities alone. This extension acts as a bridge between the web portal and a native messaging application that interfaces with physical IC card readers and certificate files.
User navigates to the GEPS or Procurement Portal website → The content script detects the sign_client_extension meta tag and listens for GepsMainCtrl custom events → When the portal needs certificate operations (login, signing), it dispatches events → The content script forwards requests to the background script → The background script communicates with the native messaging host (jp.go.geps.getcertcrypt) → The native app interfaces with the IC card reader or certificate file → Results are relayed back through the extension to the web portal
Retrieve digital certificates from IC cards (My Number Card, JPKI card, GPKI card) Perform digital signing with IC card certificates Retrieve and sign using certificate files Get certificate and sign in combined operations Version reporting for the extension Communication bridge between web portal and native certificate management application
Target users Japanese government procurement officials / Private sector contractors bidding on government contracts / Users of the Japanese Government Electronic Procurement System (GEPS) and Procurement Portal (p-portal.go.jp) Chrome Web Store detail page was unavailable, so store description/reviews/screenshots could not be consulted The native messaging host application (jp.go.geps.getcertcrypt) source is not included in the extension package - its behavior is inferred from the message protocol Cannot verify if the native host itself has any licensing or paid components Monetization No paid features detected No evidence of any paid features, payment processing, subscriptions, or premium tiers. This is a government utility extension that bridges the browser to a native messaging host for electronic certificate operations. The native host (jp.go.geps.getcertcrypt) handles IC card reader interactions for free government services.
Confidence 95
Payment platform --
Source AI / High
Login required Yes
Reason The extension's description explicitly states it is for '電子証明書によるログイン、署名等を行うためのアプリケーション' (an application for login and signing using electronic certificates) on the government procurement portals (geps.go.jp, p-portal.go.jp). The extension bridges the browser to a native messaging host (jp.go.geps.getcertcrypt) that retrieves certificates from IC cards (My Number, JPKI, GPKI) and performs digital signatures. These government portals require certificate-based authentication to access procurement workflows. Permission risk Low-risk permissions This estimate uses declared permissions and host permissions to assess access scope and sensitivity.
LOW
Publisher Unknown publisher Independent publisher
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Address -- Permissions No permission data
Host access No host access data
なかなか素晴らしいち思います。
Windows11に対応してないからなのか、ここから年金ネットには行けないぞ！