David Underdown✓ Add us as a preferred source on Google
🔄 Data last refreshed 2 days ago
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Make a deal with David Underdown
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
673
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 David Underdown
📊 Post engagement
Recent posts · likes + reposts
Feb 9latest
4
Avg engagement / post
3–4
Typical post (engagement)
0.6%
Engagement vs followers
83/100
Very consistent reach
Nov 2022
On Mastodon since
Half of recent posts land between 3 and 4 likes + reposts (median 4) — a dependable floor a sponsored post can count on.
🔥 Top post: The National Archives contribution to #wdpd2025 (by @fmackenzie4 · 6 likes + reposts
📊 Activity & format
Posting cadence
0.1 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 12 text · 0 image · 0 video.
Follower / following
0.7×
Follows 972 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
Some more details in this blog post https://www.nationalarchives.gov.uk/explore-the-collection/the-collection-blog/from-our-volunteers/finding-a-new-copy-of-the-us-declaration-of-independence/
Another early printed copy of the Declaration of Independence has turned up in The National Archives (UK) in papers sent in to the Admiralty by the captain of the Royal Navy vessel which captured the first US privateer to be taken in Europ…
#DigiPres the Digital Archiving Department at The National Archives (UK) is currently looking for a Digtial Archivist (Transfer) https://www.civilservicejobs.service.gov.uk/csr/jobs.cgi?jcode=1974176 and 2 Data Engineers https://www.civils…
#DigiPres AWS have introduced a new way to get reporting on integrity checking without having to redownload your files https://aws.amazon.com/about-aws/whats-new/2025/08/amazon-s3-verify-content-stored-datasets/
#DigiPres The Digital Archiving department at The National Archives (UK) has a fixed term vacancy (6 months) for a digital archivist (covering a career break). Salary £32,721 - £37,000 (plus civil service pension). Hybrid working, regular …
#DigiPres we are currently recruiting for a data analyst in the Digital Archiving department at The National Archives https://www.civilservicejobs.service.gov.uk/csr/jobs.cgi?jcode=1924218
Salary £36,000 per annum plus £9,000 market supple…
Slightly unexpectedly in Washington DC today. Any NARA or Library of Congress #DigiPres folks fancy coffee or lunch?
Archives and Records Association’s Section for Archives and Technology AGM will be on 20 June, preceded at noon by a presentation by @jameselder on recent work at BT Archives) on video summarisation using Large Language Models. https://www…
The ARA Section for Archives and Technology will be hosting Digital Preservation Game Jam in collaboration with the University College London Information Studies Department.
The event will be held on UCL Bloomsbury Campus on the 10th May…
The popular #DigitalPreservation games events will return on:
5 March (KCL Archives) https://www.eventbrite.co.uk/e/841360621267?aff=oddtdtcreator
18 April (virtual) https://www.eventbrite.co.uk/e/841364372487?aff=oddtdtcreator
23 May (KCL…
Those flipped bits really can have an impact https://hackaday.com/2024/02/09/flipped-bit-could-mark-the-end-of-voyager-1s-interstellar-mission/ #DigiPres
🐘 Community & instance
Home server
digipres.club
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ 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 4 views per post.
📤Posts about 0.1× per week.
📍Based in United Kingdom.
🕵️ Fake follower check
Estimated52/100
Fair
Credibility score
76%
Mixed
Real audience
Medium
Fake-follower risk
High
Data confidence
- Est. 76% real, active audience · Medium fake-follower risk.
- Low engagement (~0.6% of followers engage each post) — a sign of an inflated or inactive audience.
- Verified account.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
💚 Brand affinity
EstimatedBrands David Underdown's audience is most likely to respond to — from detected sponsorships in this niche.
About
Data Engineer at The National Archives (UK), (Digital Archiving). Plus, singing, promming, cycling and #WWI. Own views.
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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How many followers does David Underdown have?
David Underdown has 673 followers on Mastodon.
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