BLACKSITE 15 Testing Group #33915609

members (measured 15 Oct 2026, 09:28 UTC)

23 February 2024

created (per Roblox API)

10 August 2026

first measured by this register

OtherEN

Description

Written by the group; not a statement by this register.

Membership history

Growth

2 measurements spanning 57 days, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 8–9 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
7 Oct 2026, 20:32	8	-1
11 Aug 2026, 15:42	9	first reading

Ownership

Owned by FLASHNUKEWARRIOR4129 (@bus_driverfr) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

FLASHNUKEWARRIOR4129 (@bus_driverfr) — Owner (rank 255)

Guest 589 (@tjholiday1977) — Developer (rank 254)

Comet (@KingCometeer) — Authorized Tester (rank 1)

Kaelrix Ferrum (@Sigma_Fedorov) — Authorized Tester (rank 1)

@BossSIKRIM146 — Authorized Tester (rank 1)

@c10ak3r — Authorized Tester (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Owner1

Developer2

Member9

Authorized Tester6

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

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SYNC Corp.#306942031 · 3 shared members

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Badass Experiences#9825692 · 2 shared members

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Paradoxum Games#4914494 · 2 shared members

6,049,255

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.