LIVE
⭐4.7M influencer listings 🏢54K sponsor listings 🌍72B combined audience reach 📊13 platforms indexed 🗺️130+ countries covered 🏷️10,000+ niches 🦋2M Bluesky creators 🎙️1.2M podcast creators 🟣832.8K Twitch creators 🐘161.9K Mastodon creators 🥊113.9K Kick creators 📈99.2K Pinterest creators 𝕏93.4K X creators ▶️86.1K YouTube creators ✈️59.2K Telegram creators 🎵40.4K TikTok creators 🎮8.6K Discord creators 🎬4.2K Rumble creators 📈2.4K Substack creators 🧵1.7K Threads creators ⭐4.7M influencer listings 🏢54K sponsor listings 🌍72B combined audience reach 📊13 platforms indexed 🗺️130+ countries covered 🏷️10,000+ niches 🦋2M Bluesky creators 🎙️1.2M podcast creators 🟣832.8K Twitch creators 🐘161.9K Mastodon creators 🥊113.9K Kick creators 📈99.2K Pinterest creators 𝕏93.4K X creators ▶️86.1K YouTube creators ✈️59.2K Telegram creators 🎵40.4K TikTok creators 🎮8.6K Discord creators 🎬4.2K Rumble creators 📈2.4K Substack creators 🧵1.7K Threads creators
Sebastian Forster

Sebastian Forster

Mastodon @forster@mathstodon.xyz
⚔ Compare ☆ Follow Own this channel?
🔄 Data last refreshed 1 day ago
🤝

Make a deal with Sebastian Forster

🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→ 🎬UGC HireBranded content for your own channels & ads from $50→ 🎙️Podcast guest spotInvite Sebastian Forster onto your podcast (~45 min, remote) $26→ 📞1:1 ConsultPaid video call — advice, coaching or Q&A $75/hr→

Every booking is a normal escrow-protected deal.

Followers
203
Account age
6 yrs
🎁 Free analysisfor Sebastian Forster
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

Known for

My former PhD student Tijn de Vos was recognized with the "Heinz Zemanek Preis" by the Austrian Computer Society (@ocg). The award ceremony happened today at the Austrian Computer Science Day 2026. Congratulations!5 views My former PhD student Tijn de Vos was recognized with the "Heinz Zemanek Preis" by the Austrian Computer Society (@ocg). The award ceremony happened today at the Austrian Computer Science Day 2026. Congratulations!

📊 Post engagement

3
Avg engagement / post
1.5%
Engagement vs followers
Oct 2019
On Mastodon since

🔥 Top post: My dear friend Gramoz asked me to share the following job ad: Th · 7 likes + reposts

📊 Activity & format

Posting cadence
0.4 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
1.4×
Follows 145 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post My dear friend Gramoz asked me to share the following job ad: There are two fully funded PhD positions in Theory of Algorithms under Gramoz Goranci at University of Vienna. Interested candidates can apply here (https://shorturl.at/jKx80) - application deadline: June 29. For any … ★ 7
My former PhD student Tijn de Vos was recognized with the "Heinz Zemanek Preis" by the Austrian Computer Society (@ocg). The award ceremony happened today at the Austrian Computer Science Day 2026. Congratulations! ★ 5 Our paper Incremental (k, z)-Clustering on Graphs got accepted to ICALP. This is joint work with Emilio Cruciani (who is now an assistant professor at the European University of Rome) and my former PhD student Antonis Skarlatos (who is a p… ★ 3 There's quite a discussion around #Signal and the recent phishing attacks in Germany. Let me highlight two of Signal's design choices that challenge a bit the gospel that victims of such attacks are just "too stupid". 1. Signal does send s… ★ 2 I have an open position for a predoctoral university assistant ("PhD student") in efficient graph algorithms. Our group has expertise in dynamic, distributed, and parallel algorithms. The position comes with a mild teaching load ("TAing").… ★ 6 Just did some queries with "Wayback Machine" and it looks like the proceedings where simply available as a free (as in beer) download, which would be consistent with my memories. What did SIAM change that blocked access to SODA proceedings for many academic institutions? ★ 1 Jenen, die hier Latein "verteidigen", müsste doch auffallen, dass "Logik" und "strukturiertes Denken" in der Debatte Informatik/KI vs Latein nicht gerade die Pluspunkte für Latein sind... Aber das ist wahrscheinlich die "in Mathe war ich i… Aha: https://www.derstandard.at/story/3000000307090/ "Wer Latein marginalisiert, schwächt bewusst jene Fähigkeiten, die eine demokratische Gesellschaft dringend braucht: strukturiertes Denken, sprachliche Präzision, historische Urteilskraf… ★ 1 My student Antonis Skarlatos successfully defended his PhD thesis titled "Dynamic k-Clustering and Shortest Paths" today. Congratulations! ★ 3 "VLSI design" scores pretty high in the introduction bingo for CS theory papers. ★ 1 Are they getting DDoS'ed because of their "stop the war!" banner?

🐘 Community & instance

Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Oct 2019
An OG fediverse account from Mastodon's early years — a long, established presence.

💡 Facts

🗓️Joined Mastodon in 2019 — 6 years ago.
👁️Averages 3 views per post.
📤Posts about 0.4× per week.

🕵️ Fake follower check

Estimated
80/100
Excellent Credibility score
97%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 97% real, active audience · Low fake-follower risk.
  • Strong engagement (~1.5% of followers engage each post) — an active, real audience.
  • Established account (6+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Professor at the Department of Computer Science, University of Salzburg, Austria, working on graph algorithms I support the initiative "Theoretical Computer Scientists for Future" (https://tcs4f.org/).

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Eryck Gu⸸⸸eЯaL Eryck Gu⸸⸸eЯaL 18% Techy Geek :verified: Techy Geek :verified: 17% Caleb Caleb 16% Charles A-M Charles A-M 13% TREC at PSU TREC at PSU 12% Brad Larsen Brad Larsen 10%

More like this

Find more →
Mastodon ＋
Brad Larsen
Brad Larsen ✓
@bradlarsen@infosec.exchange
203 Followers
Mastodon ＋
Techy Geek :verified:
Techy Geek :verified:
@techygeek@infosec.exchange
203 Followers
Mastodon ＋
Eryck Gu⸸⸸eЯaL
Eryck Gu⸸⸸eЯaL
@gothfvck@metalhead.club
203 Followers
Mastodon ＋
Charles A-M
Charles A-M ✓
@centretowner@urbanists.social
203 Followers
Mastodon ＋
TREC at PSU
TREC at PSU
@trecpdx@urbanists.social
203 Followers
Mastodon ＋
Caleb
Caleb ✓
@caleb@hachyderm.io
203 Followers

Frequently asked questions

How much does Sebastian Forster charge for a sponsorship?
Sebastian Forster hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Sebastian Forster for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Sebastian Forster, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many followers does Sebastian Forster have?
Sebastian Forster has 203 followers on Mastodon.

✉ Message Sebastian Forster

Reaching out to influencers is a Pro feature. Upgrade to message any influencer directly — perfect for brands and agencies booking sponsorships.

  • ✓ Message any influencer from their listing
  • ✓ The influencer gets notified by email
  • ✓ Manage every conversation in one inbox
See Pro $9.95/mo →

Already Pro? Log in.

🎤 Event / appearance with Sebastian Forster

Booking an event / appearance is a Pro feature. Upgrade to book Sebastian Forster for an in-person or virtual appearance — payment held safely in escrow until the event is done.

  • ✓ Book them for events, livestreams, panels & more
  • ✓ Sebastian Forster gets notified by email
  • ✓ Fee held in escrow, released after the appearance
See Pro $9.95/mo →

Already Pro? Log in.

Auto-generated from Mastodon's public data — no affiliation with or endorsement by SocialDB. Is this you? Claim it · Remove