Ontop✓ Add us as a preferred source on Google
🔄 Data last refreshed 2 months ago
🤝
Make a deal with Ontop
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
57
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 Ontop
📊 Post engagement
Recent posts · likes + reposts
Jan 2latest
6
Avg engagement / post
5–7
Typical post (engagement)
10.5%
Engagement vs followers
82/100
Very consistent reach
Dec 2022
On Mastodon since
Half of recent posts land between 5 and 7 likes + reposts (median 6) — a dependable floor a sponsored post can count on.
🔥 Top post: Happy new year! We are pleased to announce that Ontop 5.0.0 is o · 9 likes + reposts
📊 Activity & format
Posting cadence
0.04 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 7 text · 0 image · 0 video.
Follower / following
1.1×
Follows 50 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
First Ontop community webinar on September 17th! Join us to meet the community and share practical insights: https://ontopic.ai/en/activities/ontop-community-webinar-2026/
Ontop 5.3.1 and 5.4.0 are out! 5.4.0 features a brand-new query unfolder, support for rdfs:subClassOf* and EXISTS, along with TDEngine integration and several improvements. 5.3.1 introduces the database init script, very useful for DuckDB…
We just released Ontop 5.3.0. The main novelty is the upgrade to RDF4J 5.x (5.1.0), for which a new minor release of OWLAPI was needed. Thanks a lot to our contributors for this upgrade! And as usual, it also brings a couple of optimizatio…
Ontop 5.2.0 is out! Among all, it features fine-grained access control through special SQL functions and new optimizations for dealing with denormalized data. A big thanks to all the contributors, especially new ones!
https://ontop-vkg.or…
We just released Ontop 5.1.0! It brings support for nested data with most dialects through flatten lenses (beta), new SPARQL functions including casts, date-trunc and datetime extraction functions, new optimizations for left joins and more…
Ontop 5.0.2 is out! It brings support for Trino, Presto DB, Athena, Redshift, BigQuery and
DuckDB! Columns can now be declared IRI-safe to keep SQL queries simpler and more efficient when materializing the KG
https://ontop-vkg.org/guide/…
🐘 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
Dec 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 6 views per post.
📤Posts about 0× per week.
🕵️ Fake follower check
Estimated75/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Engagement (~0.1× 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
Virtual Knowledge Graph system for querying relational databases with SPARQL efficiently
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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12%
Lee Edwin Coursey
10%
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Frequently asked questions
How much does Ontop charge for a sponsorship?
Ontop 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 Ontop for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Ontop, 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 Ontop have?
Ontop has 57 followers on Mastodon.
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