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Karl

Karl✓

Mastodon @karl@infosec.exchange
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🔄 Data last refreshed 1 day ago
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Make a deal with Karl

🔒 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 Karl 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
254
Account age
3 yrs
🎁 Free analysisfor Karl
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

Known for

Here's a free pie chart for those who need it. #dataviz #datavisualization #engineering #science8 views Here's a free pie chart for those who need it. #dataviz #datavisualization #engineering #science Photo post3 views Photo post lame1 views lame

📊 Post engagement

3
Avg engagement / post
1.2%
Engagement vs followers
Nov 2022
On Mastodon since

🔥 Top post: Here's a free pie chart for those who need it. #dataviz #datavis · 8 likes + reposts

📊 Activity & format

Posting cadence
2.9 / week
Posts several times a week.
Content mix
Mostly text
Recent: 7 text · 4 image · 1 video.
Follower / following
1.4×
Follows 181 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post Here's a free pie chart for those who need it. #dataviz #datavisualization #engineering #science ★ 8
lame ★ 1 ▶ Very happy to see how much the gear train spins backwards. Until the indirect seconds hand complication is added, that is. Damn this J80 movement is cool. I really hope I end up fixing it. Keyless works is next (tomorrow I hope), and then … The shit show never ends. @arstechnica https://mastodon.social/@arstechnica/116993887661140995 Today's exposition to pnpm has not led to increase my confidence in the npm ecosystem. Using a dish-shaped radio telescope to detect space sugar seems adequate. https://m.slashdot.org/story/456234 Educating myself on aerial firefighting for absolutely no particular reason. There may be a significant fire close to my home. ★ 1 I claim to have almost 25 years of XP. ★ 3 RTO to boost productivity, they said. This is our open space. Photo post ★ 3 Oh, crap. That one is bad. https://github.com/J-jaeyoung/bad-epoll ★ 2 My company (EU-based cloud provider) is interested in sponsoring OSS that would need cloud credits for $PURPOSE. I'm not in charge of this so no guarantees, but I can relay some ideas, if you have any (I already suggested curl, but Daniel … ★ 1

🐘 Community & instance

Home server
infosec.exchange
A cybersecurity & infosec server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 3 views per post.
📤Posts about 2.9× per week.

🕵️ Fake follower check

Estimated
75/100
Good Credibility score
92%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 92% real, active audience · Low fake-follower risk.
  • Engagement (~1.2% of followers engage each post) is around typical for Mastodon.
  • Verified account.
  • Established account (3+ years old).

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

About

Engineer. Used to work on industrial cybersecurity for money. Now helping to build *that* someone else's computer. Interests include Unix, security, cryptography. I know enough about sand to not let it do the thinking for me. Non-technical interests are climbing, watchmaking, records, beer, and whisky. Oh, and MTG. Will toot terrible puns in either English or French. Trans rights are human rights. Fascists can rot in hell.

📸 Gallery

lame Very happy to see how much the gear train spins backwards. Until the indirect seconds hand complication is added, that is. Damn this J80 movement is cool. I really hope I end up fixing it. Keyless works is next (tomorrow I hope), and then the balance (scary!). Fingers crossed! Here's a free pie chart for those who need it. #dataviz #datavisualization #engineering #science RTO to boost productivity, they said. This is our open space. Photo post

🔀 Audience overlap

Estimated

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

firstprimate firstprimate 17% Luca De Biase Luca De Biase 17% Michael Michael 14% Dr. Sam Wein Dr. Sam Wein 12% uomomosca uomomosca 11% Jeroen Jeroen 11%

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