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Raw Queries and Responses

1. Shard Calculation

Query:
Response:
Calculated Shard: 78 (from laksa150)

2. Crawled Status Check

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Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

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Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄
INDEXABLE
CRAWLED
2 days ago
🤖
ROBOTS ALLOWED

Page Info Filters

FilterStatusConditionDetails
HTTP statusPASSdownload_http_code = 200HTTP 200
Age cutoffPASSdownload_stamp > now() - 6 MONTH0.1 months ago
History dropPASSisNull(history_drop_reason)No drop reason
Spam/banPASSfh_dont_index != 1 AND ml_spam_score = 0ml_spam_score=0
CanonicalPASSmeta_canonical IS NULL OR = '' OR = src_unparsedNot set

Page Details

PropertyValue
URLhttps://www.3blue1brown.com/
Last Crawled2026-04-16 13:12:53 (2 days ago)
First Indexed2017-05-18 03:19:43 (8 years ago)
HTTP Status Code200
Meta Title3Blue1Brown - 3Blue1Brown
Meta DescriptionMathematics with a distinct visual perspective. Linear algebra, calculus, neural networks, topology, and more.
Meta Canonicalnull
Boilerpipe Text
Neural Networks Linear Algebra Calculus Differential Equations Puzzles Geometry Why Pi Analysis Physics Computer Science Fractals Probability Group Theory Number Theory Lockdown Math Talks Supporters get early access to new videos and make up the core inner audience that provides feedback and insights to refine the final form of these lessons. There are other perks, including a meaningful store discount and, for the higher-tier patrons, having your name appear in the video. Most of us find it normal to pay for textbooks and to pay (often handsomely) for courses. I believe educational videos are most valuable when they are free. Although viewers are not obligated to pay for them as they would for a textbook or course, I am very grateful for those who choose to do so anyway.
Markdown
[3Blue1BrownAnimated math](https://www.3blue1brown.com/) Menu [Talent](https://www.3blue1brown.com/talent)[Patreon](https://www.patreon.com/c/3blue1brown)[Store](https://store.dftba.com/collections/3blue1brown)[Blog](https://www.3blue1brown.com/blog)[Extras](https://www.3blue1brown.com/extras)[FAQ/Contact](https://www.3blue1brown.com/faq)[About](https://www.3blue1brown.com/about) Loading... Topics By date ![Neural Networks](https://www.3blue1brown.com/images/topics/neural-networks.svg) Neural Networks ![Linear Algebra](https://www.3blue1brown.com/images/topics/linear-algebra.svg) Linear Algebra ![Calculus](https://www.3blue1brown.com/images/topics/calculus.svg) Calculus ![Differential Equations](https://www.3blue1brown.com/images/topics/differential-equations.svg) Differential Equations ![Puzzles](https://www.3blue1brown.com/images/topics/puzzles.svg) Puzzles ![Geometry](https://www.3blue1brown.com/images/topics/geometry.svg) Geometry ![Why Pi](https://www.3blue1brown.com/images/topics/why-pi.svg) Why Pi ![Analysis](https://www.3blue1brown.com/images/topics/analysis.svg) Analysis ![Physics](https://www.3blue1brown.com/images/topics/physics.svg) Physics ![Computer Science](https://www.3blue1brown.com/images/topics/computer-science.svg) Computer Science ![Fractals](https://www.3blue1brown.com/images/topics/fractals.svg) Fractals ![Probability](https://www.3blue1brown.com/images/topics/probability.svg) Probability ![Group Theory](https://www.3blue1brown.com/images/topics/group-theory.svg) Group Theory ![Number Theory](https://www.3blue1brown.com/images/topics/number-theory.svg) Number Theory ![Lockdown Math](https://www.3blue1brown.com/images/topics/lockdown-math.svg) Lockdown Math ![Talks](https://www.3blue1brown.com/images/topics/talks.svg) Talks [3b1b Talent A virtual career fair](https://www.3blue1brown.com/talent) [Become a supporting member](https://www.patreon.com/3blue1brown) Supporters get early access to new videos and make up the core inner audience that provides feedback and insights to refine the final form of these lessons. There are other perks, including a meaningful store discount and, for the higher-tier patrons, having your name appear in the video. Most of us find it normal to pay for textbooks and to pay (often handsomely) for courses. I believe educational videos are most valuable when they are free. Although viewers are not obligated to pay for them as they would for a textbook or course, I am very grateful for those who choose to do so anyway. © 2026 Grant Sanderson
Readable Markdown
![Neural Networks](https://www.3blue1brown.com/images/topics/neural-networks.svg) Neural Networks ![Linear Algebra](https://www.3blue1brown.com/images/topics/linear-algebra.svg) Linear Algebra ![Calculus](https://www.3blue1brown.com/images/topics/calculus.svg) Calculus ![Differential Equations](https://www.3blue1brown.com/images/topics/differential-equations.svg) Differential Equations ![Puzzles](https://www.3blue1brown.com/images/topics/puzzles.svg) Puzzles ![Geometry](https://www.3blue1brown.com/images/topics/geometry.svg) Geometry ![Why Pi](https://www.3blue1brown.com/images/topics/why-pi.svg) Why Pi ![Analysis](https://www.3blue1brown.com/images/topics/analysis.svg) Analysis ![Physics](https://www.3blue1brown.com/images/topics/physics.svg) Physics ![Computer Science](https://www.3blue1brown.com/images/topics/computer-science.svg) Computer Science ![Fractals](https://www.3blue1brown.com/images/topics/fractals.svg) Fractals ![Probability](https://www.3blue1brown.com/images/topics/probability.svg) Probability ![Group Theory](https://www.3blue1brown.com/images/topics/group-theory.svg) Group Theory ![Number Theory](https://www.3blue1brown.com/images/topics/number-theory.svg) Number Theory ![Lockdown Math](https://www.3blue1brown.com/images/topics/lockdown-math.svg) Lockdown Math ![Talks](https://www.3blue1brown.com/images/topics/talks.svg) Talks Supporters get early access to new videos and make up the core inner audience that provides feedback and insights to refine the final form of these lessons. There are other perks, including a meaningful store discount and, for the higher-tier patrons, having your name appear in the video. Most of us find it normal to pay for textbooks and to pay (often handsomely) for courses. I believe educational videos are most valuable when they are free. Although viewers are not obligated to pay for them as they would for a textbook or course, I am very grateful for those who choose to do so anyway.
Shard78 (laksa)
Root Hash2122703424142777278
Unparsed URLcom,3blue1brown!www,/ s443