Petr Tesařík✓ Add us as a preferred source on Google
🔄 Data last refreshed 3 days ago
🤝
Make a deal with Petr Tesařík
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
279
Account age
1 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Petr Tesařík
📊 Post engagement
Recent posts · likes + reposts
Mar 24latest
6
Avg engagement / post
2–7
Typical post (engagement)
2.2%
Engagement vs followers
43/100
Variable reach
Apr 2025
On Mastodon since
Half of recent posts land between 2 and 7 likes + reposts (median 3) — reach is spiky, driven by the occasional post that pops.
🔥 Top post: I'm disappointed. It's past 5pm already, and there's still no fr · 31 likes + reposts
📊 Activity & format
Posting cadence
0.73 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
1.9×
Follows 148 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
Ugh, I completely forgot to boast that my latest cleanup patch makes the kernel a tiny bit smaller again:3 files changed, 17 insertions(+), 32 deletions(-)
But other folks keep adding lines. 😠
We need more volunteers for #MKSA!
https://git…
Hell, if it's now my boss suggesting I share the burden of MM maintainership, do I still have an excuse? Or even choice? 😱
EDIT: I know what I'll do. I can use my last line of defense: I am not fit for the job! 😎
Although… maybe I know the…
Love #British attitude to life.
Cc @ljs
I feel sorry for our fellows at #RedHat.
https://socket.dev/blog/mini-shai-hulud-campaign-hits-red-hat-cloud-services-npm-packages
If you ask me, the current rate of Linux #kernel zero-day exploits is unsustainable, so while it's hard at the moment, it's likely to be much calmer in a few weeks.
However, it's unlikely to be the case for some other (closed-source) opera…
Note to self: kexec into a new kernel works much better if you use an actual initrd for the --initrd argument rather than the bzImage binary…
Oh, this is cool. When I install a new font, #Firefox automatically refreshes the page that was already rendered, so I can watch missing glyphs turn into actual shapes in real time.
Only at #SUSE!
Today, Vojtech Pavlik taught me that a great benefit of AI is going to the pub.
Hell, yeah! Who's joining?
Cc @vbabka @lkundrak
@nijel You may find it amusing that section titles in Solid Ground are still upside down today.
If your firewall starts behaving strangely after installing #docker on #opensuse #slowroll, the reason is that firewalld has switched to nft, but docker still uses iptables. You may have to install iptables (the CLI tool) to fix the damage.
How come I hadn't known this gem until I was told today?
https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition/issues/509
Love #British attitude to life.
Cc @ljs
I feel sorry for our fellows at #RedHat.
https://socket.dev/blog/mini-shai-hulud-campaign-hits-red-hat-cloud-services-npm-packages
If you ask me, the current rate of Linux #kernel zero-day exploits is unsustainable, so while it's hard at the moment, it's likely to be much calmer in a few weeks.
However, it's unlikely to be the case for some other (closed-source) opera…
Note to self: kexec into a new kernel works much better if you use an actual initrd for the --initrd argument rather than the bzImage binary…
Oh, this is cool. When I install a new font, #Firefox automatically refreshes the page that was already rendered, so I can watch missing glyphs turn into actual shapes in real time.
Only at #SUSE!
Today, Vojtech Pavlik taught me that a great benefit of AI is going to the pub.
Hell, yeah! Who's joining?
Cc @vbabka @lkundrak
@nijel You may find it amusing that section titles in Solid Ground are still upside down today.
If your firewall starts behaving strangely after installing #docker on #opensuse #slowroll, the reason is that firewalld has switched to nft, but docker still uses iptables. You may have to install iptables (the CLI tool) to fix the damage.
How come I hadn't known this gem until I was told today?
https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition/issues/509
🐘 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
Apr 2025
An established account with real history on the platform.
💡 Facts
🗓️Joined Mastodon in 2025 — 1 year ago.
👁️Averages 6 views per post.
📤Posts about 0.7× per week.
🕵️ Fake follower check
Estimated70/100
Good
Credibility score
87%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 87% real, active audience · Low fake-follower risk.
- Engagement (~2.2% of followers engage each post) is around typical for Mastodon.
- Verified account.
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Linux kernel hacker.
Pronouns: he/him
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
Markus Gaines
18%
Lune du dragon vert
18%
Alavi | علوی
15%
RaphAstronome
14%
gio k.
12%
Camilla Hoel
10%
More like this
Find more →
Mastodon
＋
Alavi | علوی ✓
@alavi@techhub.social
279
Followers
Mastodon
＋
gio k.
@giok@electricrequiem.com
279
Followers
Mastodon
＋
Markus Gaines ✓
@necromanticnomad@mastodon.online
279
Followers
Mastodon
＋
Camilla Hoel
@camilla_hoel@hcommons.social
279
Followers
Mastodon
＋
Lune du dragon vert ✓
@aarn0@mamot.fr
279
Followers
Mastodon
＋
RaphAstronome ✓
@raphastronome@mamot.fr
279
Followers
Frequently asked questions
How much does Petr Tesařík charge for a sponsorship?
Petr Tesařík 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 Petr Tesařík for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Petr Tesařík, 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 Petr Tesařík have?
Petr Tesařík has 279 followers on Mastodon.
✉ Message Petr Tesařík
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
Already Pro? Log in.
🎤 Event / appearance with Petr Tesařík
Booking an event / appearance is a Pro feature. Upgrade to book Petr Tesařík for an in-person or virtual appearance — payment held safely in escrow until the event is done.
- ✓ Book them for events, livestreams, panels & more
- ✓ Petr Tesařík gets notified by email
- ✓ Fee held in escrow, released after the appearance
Already Pro? Log in.
🚀
You're out of free requests this month
Free accounts get 5 per month. Go Pro for unlimited sponsor pitches, collab requests & sponsorship deals — plus featured placement, the Verified badge, free withdrawals and more.
Upgrade to Pro — $9.95/mo →Your free limit resets on the 1st of next month.
Auto-generated from Mastodon's public data — no affiliation with or endorsement by SocialDB. Is this you? Claim it · Remove