---
title: "Christian Klass · 2026-09-21"
description: "Its very cool, that this exists. This is already the second alternative to LinkedIn I disovered this week. There also is the Atmosphere/atproto based [Sifa · Portable professional identity on the open"
url: https://vutuv.de/christian_klass/posts/01a0c413-e460-718d-8a5c-570223a0ff3f
type: post
schema_version: 3
generated_at: 2026-09-22T11:38:46Z
---

# Post by [Christian Klass](https://vutuv.de/christian_klass) · 2026-09-21

Its very cool, that this exists. This is already the second alternative to LinkedIn I disovered this week. There also is the Atmosphere/atproto based [Sifa · Portable professional identity on the open web](https://sifa.id/).

Likes: 3 · Reposts: 0 · Bookmarks: 1

Liked by: Marcel Krings, Mihail Moroşan, Quentin Le Duff

## Conversation (5)

#### [Christian Klass](https://vutuv.de/christian_klass/posts/01a0c416-6e5d-7d12-9612-633abbff8390) · 2026-09-21

> In reply to a post by Christian Klass.

This is my account there: https://sifa.id/p/christianklass.eurosky.social

#### [Stefan Wintermeyer](https://vutuv.de/wintermeyer/posts/01a0c417-cec2-7d33-ba8c-697fda1da311) · 2026-09-21

> In reply to a post by Christian Klass.

Interesting.

#### [Stefan Wintermeyer](https://vutuv.de/wintermeyer/posts/01a0c41a-693c-723d-a83e-14244dc7634a) · 2026-09-21

> In reply to a post by Christian Klass.

Welcome Christian, good to have you onboard, vutuv!

#### [Quentin Le Duff](https://vutuv.de/quentin_ld/posts/01a0c4a2-36aa-75ba-ac2c-3bb33767e8e5) · 2026-09-21

> In reply to a post by Christian Klass.

Thank you for sharing !