LIVE
⭐5.2M influencer listings 🏢64K sponsor listings 🌍78B combined audience reach 📊13 platforms indexed 🗺️130+ countries covered 🏷️10,000+ niches 🦋2.3M Bluesky creators 🎙️1.2M podcast creators 🟣889.3K Twitch creators 🐘170.2K Mastodon creators 📈158.3K Pinterest creators 🥊133.9K Kick creators 𝕏116.3K X creators ▶️94.7K YouTube creators ✈️62.2K Telegram creators 🎵49.5K TikTok creators 🎮9.3K Discord creators 🎬4.5K Rumble creators 📈2.5K Substack creators 🧵1.9K Threads creators ⭐5.2M influencer listings 🏢64K sponsor listings 🌍78B combined audience reach 📊13 platforms indexed 🗺️130+ countries covered 🏷️10,000+ niches 🦋2.3M Bluesky creators 🎙️1.2M podcast creators 🟣889.3K Twitch creators 🐘170.2K Mastodon creators 📈158.3K Pinterest creators 🥊133.9K Kick creators 𝕏116.3K X creators ▶️94.7K YouTube creators ✈️62.2K Telegram creators 🎵49.5K TikTok creators 🎮9.3K Discord creators 🎬4.5K Rumble creators 📈2.5K Substack creators 🧵1.9K Threads creators
Dr. Brian Callahan

Dr. Brian Callahan

Mastodon @bcallah@bsd.network
⚔ Compare ☆ Follow Own this channel?
🔄 Data last refreshed 5 days ago
🤝

Make a deal with Dr. Brian Callahan

🔒 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 Dr. Brian Callahan onto your podcast (~45 min, remote) $28→ 📞1:1 ConsultPaid video call — advice, coaching or Q&A $75/hr→

Every booking is a normal escrow-protected deal.

Followers
1.2K
Account age
8 yrs
🎁 Free analysisfor Dr. Brian Callahan
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

📊 Activity & format

Follower / following
4.6×
Follows 257 back. A more reciprocal / networked account.

🐘 Community & instance

Home server
bsd.network
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Jan 2018
An OG fediverse account from Mastodon's early years — a long, established presence.

💡 Facts

🗓️Joined Mastodon in 2018 — 8 years ago.

🕵️ Fake follower check

Estimated
57/100
Fair Credibility score
89%
Real Real audience
Low Fake-follower risk
Medium Data confidence
  • Est. 89% real, active audience · Low fake-follower risk.
  • Limited engagement data — score uses the signals available.
  • Established account (8+ years old).

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

About

Prof, CSSE@MU Director, Monmouth University Cybersecurity Research Center Former #OpenBSD developer

🔀 Audience overlap

Estimated

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

MonOeil MonOeil 18% everton137 everton137 17% Tuomas Tammisto Tuomas Tammisto 15% LaVi LaVi 15% Stephan* Stephan* 15% LibreOffice Design LibreOffice Design 15%

More like this

Find more →
Mastodon ＋
Tuomas Tammisto
Tuomas Tammisto ✓
@tutam@fediscience.org
1.2K Followers
Mastodon ＋
LaVi
LaVi
@lavi@livellosegreto.it
1.2K Followers
Mastodon ＋
Stephan*
Stephan*
@stephan@them.cheeky.wales
1.2K Followers
Mastodon ＋
LibreOffice Design
LibreOffice Design
@libodesign@fosstodon.org
1.2K Followers
Mastodon ＋
everton137
everton137 ✓
@everton137@social.vivaldi.net
1.2K Followers
Mastodon ＋
MonOeil
MonOeil
@monoeil@piaille.fr
1.2K Followers

Frequently asked questions

How much does Dr. Brian Callahan charge for a sponsorship?
Dr. Brian Callahan 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 Dr. Brian Callahan for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Dr. Brian Callahan, 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 Dr. Brian Callahan have?
Dr. Brian Callahan has 1,182 followers on Mastodon.

✉ Message Dr. Brian Callahan

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 Dr. Brian Callahan

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

  • ✓ Book them for events, livestreams, panels & more
  • ✓ Dr. Brian Callahan 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

✉️ Contact