Christian Ullenboom Add us as a preferred source on Google
🔄 Data last refreshed 16 days ago
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Make a deal with Christian Ullenboom
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
88
Account age
3 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 Christian Ullenboom
Known for
1 views
In an era where every detail in a homepage image is carefully staged, someone must have placed that decanter there intentionally. So what is Blackmagic trying to tell us? That Hollywood is hard to process without a drink? Or: Edit, grade, drink, export? Found on the DaVinci Resolve homepage.
#davinciresolve #blackmagicdesign #ProductPhotography
#VisualCommunication
#Hollywood
1 views
McDo in the Netherlands:
#GUIFail #UIFail #UXFail #Bug
1 views
Im September ist es soweit, dann erscheint mein neues Buch über Programmierung in C beim Rheinwerk-Verlag.
Wer vorher schon mal reinschauen möchte, kann sich gerne melden.
#rheinwerkVerlag #rheinwerk #buch #c23 #informatik #programmierung
📊 Post engagement
Recent posts · likes + reposts
May 7latest
3
Avg engagement / post
1–3
Typical post (engagement)
3.4%
Engagement vs followers
61/100
Consistent reach
Nov 2022
On Mastodon since
Half of recent posts land between 1 and 3 likes + reposts (median 2) — a dependable floor a sponsored post can count on.
🔥 Top post: Mein Podcast mit Dirk Deimeke: Pets and Cattle: Systeme betreibe · 8 likes + reposts
📊 Activity & format
Posting cadence
0.92 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 7 text · 5 image · 0 video.
Follower / following
22×
Follows 4 back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Recent posts
View on Mastodon ↗
As an author, you sometimes rework an explanation several times before it feels right. That happened to me with a section on how mathematical operators and functions are implemented in Java, which I needed for my current book on the Java V…
https://openjdk.org/jeps/401
Java Value Objects are expected to arrive in Java 28 as a preview feature. The current version is Java 26. The next release, Java 27, is scheduled for September; Java 28 is expected in March 2027.
#java
In an era where every detail in a homepage image is carefully staged, someone must have placed that decanter there intentionally. So what is Blackmagic trying to tell us? That Hollywood is hard to process without a drink? Or: Edit, grade,…
3., aktualisierte Auflage, "Spring Boot 4 und Spring Framework 7. Das umfassende Handbuch", bald im Handel.
https://www.rheinwerk-verlag.de/spring-boot-4-und-spring-framework-7_6362/
#SpringBoot #Java #Softwareentwicklung #Fachbuch #Comput…
McDo in the Netherlands:
#GUIFail #UIFail #UXFail #Bug
"Alles ist Culture." Mein Podcast mit Sujeevan Vijayakumaran. Inhalt:
Was bringt das beste Tool, wenn die Prozesse nicht passen und die Menschen stur bleiben? Sujeevan Vijayakumaran hat als Solutions Architect bei GitLab viele Unternehmen …
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national …
TIL: JEP 165 (Compiler Control) https://openjdk.org/jeps/165 lets you tune the JIT per method — disable vectorization, control inlining, print assembly, disable specific intrinsics, and more.
Example:
```json
[
{
"match": "com/exampl…
Wie wird man eigentlich Autor eines Standardwerks, ohne es geplant zu haben? Für die Nullnummer von »Readme« dreht Stefan Proksch von Rheinwerk den Spieß um und befragt Christian Ullenboom zu seinem Weg vom C64 ins Informatikstudium und in…
Neue Android-App, um die alte deutsche Schreibschrift zu lernen. Die App hilft beim Lesen und Schreiben von Kurrent und Sütterlin mit Übungen und Beispielen.
https://play.google.com/store/apps/details?id=de.binarium.kurrent
#Android #Schre…
Im September ist es soweit, dann erscheint mein neues Buch über Programmierung in C beim Rheinwerk-Verlag.
Wer vorher schon mal reinschauen möchte, kann sich gerne melden.
#rheinwerkVerlag #rheinwerk #buch #c23 #informatik #programmierung
In an era where every detail in a homepage image is carefully staged, someone must have placed that decanter there intentionally. So what is Blackmagic trying to tell us? That Hollywood is hard to process without a drink? Or: Edit, grade,…
3., aktualisierte Auflage, "Spring Boot 4 und Spring Framework 7. Das umfassende Handbuch", bald im Handel.
https://www.rheinwerk-verlag.de/spring-boot-4-und-spring-framework-7_6362/
#SpringBoot #Java #Softwareentwicklung #Fachbuch #Comput…
McDo in the Netherlands:
#GUIFail #UIFail #UXFail #Bug
"Alles ist Culture." Mein Podcast mit Sujeevan Vijayakumaran. Inhalt:
Was bringt das beste Tool, wenn die Prozesse nicht passen und die Menschen stur bleiben? Sujeevan Vijayakumaran hat als Solutions Architect bei GitLab viele Unternehmen …
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national …
TIL: JEP 165 (Compiler Control) https://openjdk.org/jeps/165 lets you tune the JIT per method — disable vectorization, control inlining, print assembly, disable specific intrinsics, and more.
Example:
```json
[
{
"match": "com/exampl…
Wie wird man eigentlich Autor eines Standardwerks, ohne es geplant zu haben? Für die Nullnummer von »Readme« dreht Stefan Proksch von Rheinwerk den Spieß um und befragt Christian Ullenboom zu seinem Weg vom C64 ins Informatikstudium und in…
Neue Android-App, um die alte deutsche Schreibschrift zu lernen. Die App hilft beim Lesen und Schreiben von Kurrent und Sütterlin mit Übungen und Beispielen.
https://play.google.com/store/apps/details?id=de.binarium.kurrent
#Android #Schre…
Im September ist es soweit, dann erscheint mein neues Buch über Programmierung in C beim Rheinwerk-Verlag.
Wer vorher schon mal reinschauen möchte, kann sich gerne melden.
#rheinwerkVerlag #rheinwerk #buch #c23 #informatik #programmierung
🐘 Community & instance
Home server
mas.to
A large general-interest Mastodon server. On the fediverse the server a creator picks hints at their community — this one spans all topics.
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 0.9× per week.
🕵️ Fake follower check
Estimated66/100
Good
Credibility score
89%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 89% real, active audience · Low fake-follower risk.
- Engagement (~3.4% of followers engage each post) is around typical for Mastodon.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
nothacking
18%
samurro
17%
Menno Deij - van Rijswijk
16%
Chris Grey
14%
Bill Zaumen
14%
Johanna Beatty :toad:
12%
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nothacking
@nothacking@infosec.exchange
88
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samurro
@samurro@fosstodon.org
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Mastodon
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Johanna Beatty :toad:
@yoyobeatty@toad.social
88
Followers
Mastodon
＋
Menno Deij - van Rijswijk
@menno@tech.lgbt
88
Followers
Mastodon
＋
Chris Grey
@minus1digit@mstdn.party
88
Followers
Mastodon
＋
Bill Zaumen ✓
@bzdev@fosstodon.org
88
Followers
Frequently asked questions
How much does Christian Ullenboom charge for a sponsorship?
Christian Ullenboom 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 Christian Ullenboom for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Christian Ullenboom, 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 Christian Ullenboom have?
Christian Ullenboom has 88 followers on Mastodon.
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