Subscribers
81M
About this metric
Public subscriber count at check time.
Mark Rober YouTube stats
YouTube@markrober
Profile data checked Aug 6, 2026, 1:43 PM
Report generated Sep 15, 2026, 12:26 PM · Methodology
76/100
Mostly strong signals
Lifetime views
18.4B
About this metric
Public channel view count at check time.
Typical views
21.7M
About this metric
Median views across 50 sampled uploads.
Views / 1K subscribers
267.6
About this metric
Median sampled views per 1,000 public subscribers. This measures visible audience penetration, not unique reach.
Category scores
Out of 100Upload cadence
Limited
33/100
Description context
Limited
60/100
Viewer response
Strong
80/100
Channel description
Strong
82/100
Topic consistency
Strong
85/100
Search signals
Strong
88/100
Channel setup
Strong
90/100
Video mix
Strong
90/100
Channel links
Strong
90/100
Peer position
106 YouTube profiles · Over 1M · updated Oct 11, 26Public engagement
52nd percentile
Audit score
61st percentile
Bio and content
12 of 50 posts analyzedIdentifies a former NASA and Apple mechanical engineer who creates science videos and sells monthly engineering toys through CrunchLabs.
Audience
Science-curious viewers, families, young builders, and people interested in engineering experiments, educational toys, and large-scale demonstrations.
Positioning
Entertainment-led science and engineering content anchored by Rober’s professional credentials and CrunchLabs products.
Bio/content match
StrongNine of twelve sampled posts clearly support science, engineering, experiments, practical mechanics, or CrunchLabs, meeting the 75% threshold.
Public views on uploads published in the last 30 days
3 uploads in windowLikes / 1K views
16.1
Comments / 1K views
0.07
Upload pace
0.7/week
Shorts mix
82%
Community posts sampled
10
Community posting pace
0.0/week
Typical community likes
68K
Community/video topic overlap
50%
Joined
Oct 19, 2011
Channel keywords
DIY, Creative, Design, Hack
Video patterns
View consistency
49%
Captured sample: Median 21.7M / average 44.4M
Top vs typical
15.1x
Captured sample: Highest sampled result divided by the median
Comment share
0%
Captured sample: 152.3K replies or comments / 35.8M interactions
Publishing pace
0.7/week
Captured sample: 50 posts across the visible sample
Category details
Upload cadence
The captured sample is stale or too irregular to show a reliable publishing rhythm.
- Newest visible post is 47 days old
- 3 posts published in the 30-day window
- 0.7 visible posts per week
Description context
Many sampled posts provide little visible text context.
- 50 of 50 posts included text
- 20 included at least 40 characters
- 11 included at least 120 characters
Viewer response
The typical sampled upload earns solid public response without relying entirely on one outlier.
- 20.1 median public responses per 1,000 views
- 100% median-to-average response-rate consistency
- 50 uploads with public view counts
Channel description
Identifies a former NASA and Apple mechanical engineer who creates science videos and sells monthly engineering toys through CrunchLabs.
- Calls himself a former NASA engineer and current CrunchLabs founder.
- Describes monthly engineering toys built alongside videos.
- Lists mechanical engineering education and NASA, Apple, and CrunchLabs experience.
Topic consistency
Nine of twelve sampled posts clearly support science, engineering, experiments, practical mechanics, or CrunchLabs, meeting the 75% threshold.
- Multiple posts explore car-theft prevention and mechanics.
- Posts feature skyscraper stability, a tennis-ball cannon, dinosaur breath, and a large experiment.
- Two posts directly promote CrunchLabs toys or programming reliably tied to CrunchLabs content strategy.
Search signals
The profile and sampled content provide recurring identity and topic signals.
- Display name and handle identify the same account
- Recurring topics: thanks, video
- Category unavailable
Channel setup
The profile has strong public identity and context signals.
- Bio found
- Public destination found
- Category unavailable
Video mix
The captured sample is broad enough to compare typical results.
- 50 posts sampled
- 41 short-form videos
- 9 long-form videos
Channel links
The profile provides public context and a destination beyond the platform.
- Public destination found
- Public description found
- No public contact field returned
Profile roast
Three car-theft hooks beneath a NASA résumé make this science profile look like an embarrassing algorithm-chasing mess.
@markrober · B · 76/100
Related profiles
5-Minute Crafts@5minutecraftsyoutube80.6M subscribersCTips Official@tipsofficial82M subscribersCHYBE LABELS@hybelabels82.2M subscribersAColors TV@colorstv82.3M subscribersBZhong@zhong79.7M subscribersCT-Series Bhakti Sagar@tseriesbhaktisagar82.5M subscribersBToys and Colors@toysandcolors82.9M subscribersCUR · Cristiano@cristiano82.9M subscribersBtalabat@talabat100K subscribersCI&P - Investisseurs & Partenaires@ip-investisseursetpartenaires4,310 subscribersB
Embed this report
<a href="https://auditmysocials.com/youtube-audit/markrober?ref=badge&rid=badge-youtube%3Amarkrober&utm_source=shared_report&utm_medium=badge&utm_campaign=profile_referral" rel="nofollow noopener" target="_blank"><img src="https://auditmysocials.com/api/badges/youtube/markrober.svg?variant=score&theme=dark" alt="Mark Rober YouTube audit: grade B, 76/100" width="360" height="88" loading="lazy"></a>Plan what to publish next
Use SocialBu to schedule posts, manage replies, and keep your accounts active from one place.