🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 71 (from laksa105)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa071.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.flippingphysics.com/hookes-law.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.flippingphysics.com/hookes-law.html\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.flippingphysics.com\/hookes-law.html","crawl_time":1775452610,"first_indexed_time":1521904403,"http_code":200,"src_unparsed":"com,flippingphysics!www,\/hookes-law.html s443","src_root_hash":"13663103967167178271","history_drop_reason":null,"meta_title":"Hooke's Law Introduction - Force of a Spring","meta_descriptions":["Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated."],"attrs_boilerpipe_text":"Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated.\nThis is an AP Physics 1 topic.\nContent Times:\n0:01 Robert Hooke\n0:46 Compressing a spring using a force sensor\n1:33 Graphing force as a function of position\n2:14 Hooke’s Law\n3:07 Demonstrating displacement from rest position\n5:20 Demonstrating the spring constant\n6:15 What the negative in Hooke’s Law means\n7:02 The spring constant is positive\n7:54 The restoring force\n8:33 Elastic limit","attrs_markdown":"[![Flipping Physics](https:\/\/www.flippingphysics.com\/uploads\/2\/1\/1\/0\/21103672\/hand-stand-2-outline.png)](https:\/\/www.flippingphysics.com\/)\n\n- [Home](https:\/\/www.flippingphysics.com\/)\n- [Physics Videos](https:\/\/www.flippingphysics.com\/physics-videos.html)\n  - [AP Physics 1 \\>](https:\/\/www.flippingphysics.com\/ap-physics-1.html)\n    - [AP Physics 1 Review](https:\/\/www.flippingphysics.com\/ap-physics-1-review.html)\n    - [AP Physics 1 Teachers](https:\/\/www.flippingphysics.com\/ap-physics-1-teachers.html)\n  - [AP Physics 2](https:\/\/www.flippingphysics.com\/ap-physics-2.html)\n  - [AP Physics C \\>](https:\/\/www.flippingphysics.com\/ap-physics-c.html)\n    - [AP Physics C Review](https:\/\/www.flippingphysics.com\/ap-physics-c-review.html)\n    - [AP Physics C Teachers](https:\/\/www.flippingphysics.com\/ap-physics-c-teachers.html)\n  - [AP Physics C E\\&M](https:\/\/www.flippingphysics.com\/ap-physics-c-em.html)\n  - [Vertical Videos](https:\/\/www.flippingphysics.com\/vertical-videos.html)\n  - [Playlists](https:\/\/www.flippingphysics.com\/playlists.html)\n- [URP](https:\/\/www.flippingphysics.com\/urp.html)\n- [GIFs](https:\/\/www.flippingphysics.com\/gifs.html)\n  - [Kinematics GIFs](https:\/\/www.flippingphysics.com\/kinematics-gifs.html)\n  - [Dynamics GIFs](https:\/\/www.flippingphysics.com\/dynamics-gifs.html)\n  - [Work Energy and Power GIFs](https:\/\/www.flippingphysics.com\/work-energy-and-power-gifs.html)\n  - [Momentum and Impulse GIFs](https:\/\/www.flippingphysics.com\/momentum-and-impulse-gifs.html)\n  - [Rotational Kinematics GIFs](https:\/\/www.flippingphysics.com\/rotational-kinematics-gifs.html)\n  - [Rotational Dynamics GIFs](https:\/\/www.flippingphysics.com\/rotational-dynamics-gifs.html)\n  - [Universal Gravitation GIFs](https:\/\/www.flippingphysics.com\/universal-gravitation-gifs.html)\n  - [Simple Harmonic Motion GIFs](https:\/\/www.flippingphysics.com\/simple-harmonic-motion-gifs.html)\n  - [Fluids GIFs](https:\/\/www.flippingphysics.com\/fluids-gifs.html)\n  - [Waves GIFs](https:\/\/www.flippingphysics.com\/waves-gifs.html)\n  - [Sound GIFs](https:\/\/www.flippingphysics.com\/sound-gifs.html)\n  - [Electricity GIFs](https:\/\/www.flippingphysics.com\/electricity-gifs.html)\n- [About](https:\/\/www.flippingphysics.com\/about.html)\n  - [Teaching](https:\/\/www.flippingphysics.com\/teaching.html)\n  - [FAQ](https:\/\/www.flippingphysics.com\/faq.html)\n  - [Comments](https:\/\/www.flippingphysics.com\/comments.html)\n  - [Teacher Comments](https:\/\/www.flippingphysics.com\/teacher-comments.html)\n  - [Music](https:\/\/www.flippingphysics.com\/music.html)\n  - [Making a Video](https:\/\/www.flippingphysics.com\/making-a-video.html)\n  - [EDpuzzle](https:\/\/www.flippingphysics.com\/edpuzzle.html)\n  - [Spreadsheets](https:\/\/www.flippingphysics.com\/spreadsheets.html)\n  - [Technology](https:\/\/www.flippingphysics.com\/technology.html)\n  - [Survivor Application](https:\/\/www.flippingphysics.com\/survivor-application.html)\n- [Give](https:\/\/www.flippingphysics.com\/give.html)\n- [Shop](https:\/\/www.flippingphysics.com\/shop.html)\n- [Help Out](https:\/\/www.flippingphysics.com\/help-out.html)\n  - [Quality Control](https:\/\/www.flippingphysics.com\/quality-control.html)\n  - [Collaborate](https:\/\/www.flippingphysics.com\/collaborate.html)\n- [Blog](https:\/\/www.flippingphysics.com\/blog.html)\n\n## Hooke's Law Introduction - Force of a Spring (9:35)\n|   |   |   |   |   |\n|---|---|---|---|---|\n| [Previous Video](https:\/\/www.flippingphysics.com\/instantaneous-power.html) | [Lecture Notes](https:\/\/www.flippingphysics.com\/uploads\/2\/1\/1\/0\/21103672\/0248_lecture_notes_-_hookes_law_introduction_-_force_of_a_spring.pdf) | [Give](https:\/\/www.flippingphysics.com\/give.html) | [AP Physics 1](http:\/\/www.flippingphysics.com\/ap-physics-1.html#work) | [Next Video](https:\/\/www.flippingphysics.com\/vertical-spring-constant.html) |\n\n|   |   |\n|---|---|\n| Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated. This is an AP Physics 1 topic.  Content Times: 0:01 Robert Hooke 0:46 Compressing a spring using a force sensor 1:33 Graphing force as a function of position 2:14 Hooke’s Law 3:07 Demonstrating displacement from rest position 5:20 Demonstrating the spring constant 6:15 What the negative in Hooke’s Law means 7:02 The spring constant is positive 7:54 The restoring force 8:33 Elastic limit | [![Picture](https:\/\/www.flippingphysics.com\/uploads\/2\/1\/1\/0\/21103672\/0556-urp-gif-47_orig.gif)](http:\/\/bit.ly\/3ZLwUqv) |\n\n- Please support me on [Patreon](http:\/\/patreon.com\/FlippingPhysics)\\!\n- Thank you to Aarti Sangwan, Jonathan Everett, Christopher Becke, and Scott Carterfor being my [Quality Control](https:\/\/www.flippingphysics.com\/quality-control.html) team for this video.\n- Thank you to Youssef Nasr for transcribing the English subtitles of this video.\n\n[![Picture](https:\/\/www.flippingphysics.com\/uploads\/2\/1\/1\/0\/21103672\/0248-hooke-s-law_orig.gif)]()\n***\n\nCopyright © 2013-2026 · All Rights Reserved · Flipping Physics","attrs_readable_markdown":"|   |   |\n|---|---|\n| Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated. This is an AP Physics 1 topic. Content Times: 0:01 Robert Hooke 0:46 Compressing a spring using a force sensor 1:33 Graphing force as a function of position 2:14 Hooke’s Law 3:07 Demonstrating displacement from rest position 5:20 Demonstrating the spring constant 6:15 What the negative in Hooke’s Law means 7:02 The spring constant is positive 7:54 The restoring force 8:33 Elastic limit | [![Picture](https:\/\/www.flippingphysics.com\/uploads\/2\/1\/1\/0\/21103672\/0556-urp-gif-47_orig.gif)](http:\/\/bit.ly\/3ZLwUqv) |","meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

4 days ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.1 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://www.flippingphysics.com/hookes-law.html
Last Crawled	2026-04-06 05:16:50 (4 days ago)
First Indexed	2018-03-24 15:13:23 (8 years ago)
HTTP Status Code	200
Meta Title	Hooke's Law Introduction - Force of a Spring
Meta Description	Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated.
Meta Canonical	null
Boilerpipe Text	Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated. This is an AP Physics 1 topic. Content Times: 0:01 Robert Hooke 0:46 Compressing a spring using a force sensor 1:33 Graphing force as a function of position 2:14 Hooke’s Law 3:07 Demonstrating displacement from rest position 5:20 Demonstrating the spring constant 6:15 What the negative in Hooke’s Law means 7:02 The spring constant is positive 7:54 The restoring force 8:33 Elastic limit
Markdown	[![Flipping Physics](https://www.flippingphysics.com/uploads/2/1/1/0/21103672/hand-stand-2-outline.png)](https://www.flippingphysics.com/) - [Home](https://www.flippingphysics.com/) - [Physics Videos](https://www.flippingphysics.com/physics-videos.html) - [AP Physics 1 \>](https://www.flippingphysics.com/ap-physics-1.html) - [AP Physics 1 Review](https://www.flippingphysics.com/ap-physics-1-review.html) - [AP Physics 1 Teachers](https://www.flippingphysics.com/ap-physics-1-teachers.html) - [AP Physics 2](https://www.flippingphysics.com/ap-physics-2.html) - [AP Physics C \>](https://www.flippingphysics.com/ap-physics-c.html) - [AP Physics C Review](https://www.flippingphysics.com/ap-physics-c-review.html) - [AP Physics C Teachers](https://www.flippingphysics.com/ap-physics-c-teachers.html) - [AP Physics C E\&M](https://www.flippingphysics.com/ap-physics-c-em.html) - [Vertical Videos](https://www.flippingphysics.com/vertical-videos.html) - [Playlists](https://www.flippingphysics.com/playlists.html) - [URP](https://www.flippingphysics.com/urp.html) - [GIFs](https://www.flippingphysics.com/gifs.html) - [Kinematics GIFs](https://www.flippingphysics.com/kinematics-gifs.html) - [Dynamics GIFs](https://www.flippingphysics.com/dynamics-gifs.html) - [Work Energy and Power GIFs](https://www.flippingphysics.com/work-energy-and-power-gifs.html) - [Momentum and Impulse GIFs](https://www.flippingphysics.com/momentum-and-impulse-gifs.html) - [Rotational Kinematics GIFs](https://www.flippingphysics.com/rotational-kinematics-gifs.html) - [Rotational Dynamics GIFs](https://www.flippingphysics.com/rotational-dynamics-gifs.html) - [Universal Gravitation GIFs](https://www.flippingphysics.com/universal-gravitation-gifs.html) - [Simple Harmonic Motion GIFs](https://www.flippingphysics.com/simple-harmonic-motion-gifs.html) - [Fluids GIFs](https://www.flippingphysics.com/fluids-gifs.html) - [Waves GIFs](https://www.flippingphysics.com/waves-gifs.html) - [Sound GIFs](https://www.flippingphysics.com/sound-gifs.html) - [Electricity GIFs](https://www.flippingphysics.com/electricity-gifs.html) - [About](https://www.flippingphysics.com/about.html) - [Teaching](https://www.flippingphysics.com/teaching.html) - [FAQ](https://www.flippingphysics.com/faq.html) - [Comments](https://www.flippingphysics.com/comments.html) - [Teacher Comments](https://www.flippingphysics.com/teacher-comments.html) - [Music](https://www.flippingphysics.com/music.html) - [Making a Video](https://www.flippingphysics.com/making-a-video.html) - [EDpuzzle](https://www.flippingphysics.com/edpuzzle.html) - [Spreadsheets](https://www.flippingphysics.com/spreadsheets.html) - [Technology](https://www.flippingphysics.com/technology.html) - [Survivor Application](https://www.flippingphysics.com/survivor-application.html) - [Give](https://www.flippingphysics.com/give.html) - [Shop](https://www.flippingphysics.com/shop.html) - [Help Out](https://www.flippingphysics.com/help-out.html) - [Quality Control](https://www.flippingphysics.com/quality-control.html) - [Collaborate](https://www.flippingphysics.com/collaborate.html) - [Blog](https://www.flippingphysics.com/blog.html) ## Hooke's Law Introduction - Force of a Spring (9:35) \| \| \| \| \| \| \|---\|---\|---\|---\|---\| \| [Previous Video](https://www.flippingphysics.com/instantaneous-power.html) \| [Lecture Notes](https://www.flippingphysics.com/uploads/2/1/1/0/21103672/0248_lecture_notes_-_hookes_law_introduction_-_force_of_a_spring.pdf) \| [Give](https://www.flippingphysics.com/give.html) \| [AP Physics 1](http://www.flippingphysics.com/ap-physics-1.html#work) \| [Next Video](https://www.flippingphysics.com/vertical-spring-constant.html) \| \| \| \| \|---\|---\| \| Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated. This is an AP Physics 1 topic. Content Times: 0:01 Robert Hooke 0:46 Compressing a spring using a force sensor 1:33 Graphing force as a function of position 2:14 Hooke’s Law 3:07 Demonstrating displacement from rest position 5:20 Demonstrating the spring constant 6:15 What the negative in Hooke’s Law means 7:02 The spring constant is positive 7:54 The restoring force 8:33 Elastic limit \| [![Picture](https://www.flippingphysics.com/uploads/2/1/1/0/21103672/0556-urp-gif-47_orig.gif)](http://bit.ly/3ZLwUqv) \| - Please support me on [Patreon](http://patreon.com/FlippingPhysics)\! - Thank you to Aarti Sangwan, Jonathan Everett, Christopher Becke, and Scott Carterfor being my [Quality Control](https://www.flippingphysics.com/quality-control.html) team for this video. - Thank you to Youssef Nasr for transcribing the English subtitles of this video. [![Picture](https://www.flippingphysics.com/uploads/2/1/1/0/21103672/0248-hooke-s-law_orig.gif)]() *** Copyright © 2013-2026 · All Rights Reserved · Flipping Physics
Readable Markdown	\| \| \| \|---\|---\| \| Hooke’s law is demonstrated and graphed. Spring constant, displacement from equilibrium position, and restoring force are defined and demonstrated. This is an AP Physics 1 topic. Content Times: 0:01 Robert Hooke 0:46 Compressing a spring using a force sensor 1:33 Graphing force as a function of position 2:14 Hooke’s Law 3:07 Demonstrating displacement from rest position 5:20 Demonstrating the spring constant 6:15 What the negative in Hooke’s Law means 7:02 The spring constant is positive 7:54 The restoring force 8:33 Elastic limit \| [![Picture](https://www.flippingphysics.com/uploads/2/1/1/0/21103672/0556-urp-gif-47_orig.gif)](http://bit.ly/3ZLwUqv) \|
Shard	71 (laksa)
Root Hash	13663103967167178271
Unparsed URL	com,flippingphysics!www,/hookes-law.html s443