Fred Posner✓ Add us as a preferred source on Google

Mastodon @fredposner@fosstodon.org

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

Followers

166

Account age

3 yrs

🎁 Free analysisfor Fred Posner

🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

📊 Post engagement

📊 Activity & format

Posting cadence

1.2 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly text

Recent: 12 text · 0 image · 0 video.

Follower / following

1.4×

Follows 122 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗

🔥 Top post End of the month which means it's time for me to say... There are those who read what @sandrogauci and @enablesecurity write and those who wish they had. #sip #webrtc #rtc #security https://www.enablesecurity.com/newsletter/2026-07-rtcsec-news/ ★ 4

Great news! #Kamailio SIP Server v6.1.4 stable is now released, bringing some minor improvements since v6.1.3. The configuration file and database schema work together just as they did before, so you can easily update without any changes. … ★ 1 RE: https://mastodon.online/@9to5Mac/117111335024548538 North Carolina (saved you a click) ★ 2 Wrote about my newest bag... the ctactical ct21+ https://www.fredposner.com/ct-21-plus/ Wrote: STIR, SHAKEN, KYC... It's all just BS https://www.fredposner.com/stir-shaken-kyc-bs/ Blogged: APIBAN now has ipset (again) https://www.fredposner.com/apiban-ipset/ RE: https://mastodon.online/@9to5Mac/116969768384037240 Mine goes to 11 Last week, APIBAN's original iptables client received some updates, including #ipset support and an "allowed list" (for notating ips/networks that should never be blocked). And of course, APIBAN remains free (as in beer) to help protect y… ★ 2 Reading "Musk Tries To Bribe Memphis So They'll Overlook His AI Data Centers Are Killing Black Toddlers" from @KarlBode https://karlbode.com/musk-tries-to-bribe-memphis-so-theyll-overlook-his-ai-data-centers-are-killing-black-toddlers/?re… Blogged: The Kindness of Strangers https://www.fredposner.com/kindness-of-strangers/ ★ 4 There are those who read what @sandrogauci and @enablesecurity put out, and those **who wish they had.** https://www.enablesecurity.com/newsletter/2026-06-rtcsec-news/ #security #rtc #voip #opensource ★ 4 See you at ClueCon https://www.fredposner.com/going-to-cluecon2026/ ★ 1

🐘 Community & instance

Home server

fosstodon.org

A open-source software 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 1.2× 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 (~1.8% 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

Open Source VoIP Consultant. Dad. Husband. Member of #Kamailio #SIP project. Evangelist of #opensource #FLOSS #voip / #RTC. Love my amazing wife and our baby girl.  Started APIBAN in 2020 to help people block unwanted traffic from their SIP/WebRTC servers. Loves backpacks. Gainesville, FL

🔀 Audience overlap

Estimated

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

Nick Kerker :coffefied: 17%

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Travis LaFleur 16%

Grant Gould 12%

JP 10%

Oriol Salvador 10%

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Frequently asked questions

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Fred Posner 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 Fred Posner for a brand deal or collaboration?

Send a paid deal or collab request right here on SocialDB — we notify Fred Posner, 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 Fred Posner have?

Fred Posner has 166 followers on Mastodon.

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

Fred Posner✓ Add us as a preferred source on Google

Make a deal with Fred Posner

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

About

🔀 Audience overlap

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