Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 51 (from laksa166)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa051.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, ml_categories_json AS ml_categories_json, ml_types_json AS ml_types_json, ml_intent_types_json AS ml_intent_types_json, meta_language AS meta_language, attrs_author AS attrs_author, ifNull(toUnixTimestamp(attrs_publish_time), 0) AS attrs_publish_time, ifNull(toUnixTimestamp(attrs_original_publish_time), 0) AS attrs_original_publish_time, ifNull(attrs_is_republished, 0) AS attrs_is_republished, ifNull(attrs_nr_words, 0) AS attrs_nr_words, ifNull(attrs_boilerpipe_nr_words, 0) AS attrs_boilerpipe_nr_words, ifNull(body_ext_links_number, 0) AS body_ext_links_number, ifNull(body_int_links_number, 0) AS body_int_links_number, ifNull(meta_nofollow, 0) AS meta_nofollow, ifNull(meta_noarchive, 0) AS meta_noarchive, ifNull(props_was_rendered, 0) AS props_was_rendered, ifNull(src_redirect, \'\') AS src_redirect, ifNull(download_time_msec, 0) AS download_time_msec, ifNull(download_ttfb_msec, 0) AS download_ttfb_msec, ifNull(download_size, 0) AS download_size FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.youtube.com/channel/UCPFStg7VlgvjB3Weyx5D7zg\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.youtube.com/channel/UCPFStg7VlgvjB3Weyx5D7zg\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.youtube.com\/channel\/UCPFStg7VlgvjB3Weyx5D7zg","crawl_time":1758696149,"first_indexed_time":0,"http_code":200,"src_unparsed":"com,youtube!www,\/channel\/UCPFStg7VlgvjB3Weyx5D7zg s443","src_root_hash":"3907445400264388851","history_drop_reason":null,"meta_title":"This is Fine Meme - YouTube","meta_descriptions":["Share your videos with friends, family, and the world"],"attrs_boilerpipe_text":"This is Fine Meme - YouTube About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features","attrs_markdown":"[About](https:\/\/www.youtube.com\/about\/)[Press](https:\/\/www.youtube.com\/about\/press\/)[Copyright](https:\/\/www.youtube.com\/about\/copyright\/)[Contact us](https:\/\/www.youtube.com\/t\/contact_us\/)[Creators](https:\/\/www.youtube.com\/creators\/)[Advertise](https:\/\/www.youtube.com\/ads\/)[Developers](https:\/\/developers.google.com\/youtube)[Terms](https:\/\/www.youtube.com\/t\/terms)[Privacy](https:\/\/www.youtube.com\/t\/privacy)[Policy & Safety](https:\/\/www.youtube.com\/about\/policies\/)[How YouTube works](https:\/\/www.youtube.com\/howyoutubeworks?utm_campaign=ytgen&utm_source=ythp&utm_medium=LeftNav&utm_content=txt&u=https%3A%2F%2Fwww.youtube.com%2Fhowyoutubeworks%3Futm_source%3Dythp%26utm_medium%3DLeftNav%26utm_campaign%3Dytgen)[Test new features](https:\/\/www.youtube.com\/new)\n\n© 2025 Google LLC","attrs_readable_markdown":null,"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":0,"attrs_is_republished":0,"attrs_nr_words":"29","attrs_boilerpipe_nr_words":"25","body_ext_links_number":4,"body_int_links_number":17,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":198,"download_ttfb_msec":91,"download_size":75783}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	7 months ago (distributed domain, exempt)
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

Property	Value
URL	https://www.youtube.com/channel/UCPFStg7VlgvjB3Weyx5D7zg
Last Crawled	2025-09-24 06:42:29 (7 months ago)
First Indexed	not set
HTTP Status Code	200
Content
Meta Title	This is Fine Meme - YouTube
Meta Description	Share your videos with friends, family, and the world
Meta Canonical	null
Boilerpipe Text	This is Fine Meme - YouTube About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features
Markdown	[About](https://www.youtube.com/about/)[Press](https://www.youtube.com/about/press/)[Copyright](https://www.youtube.com/about/copyright/)[Contact us](https://www.youtube.com/t/contact_us/)[Creators](https://www.youtube.com/creators/)[Advertise](https://www.youtube.com/ads/)[Developers](https://developers.google.com/youtube)[Terms](https://www.youtube.com/t/terms)[Privacy](https://www.youtube.com/t/privacy)[Policy & Safety](https://www.youtube.com/about/policies/)[How YouTube works](https://www.youtube.com/howyoutubeworks?utm_campaign=ytgen&utm_source=ythp&utm_medium=LeftNav&utm_content=txt&u=https%3A%2F%2Fwww.youtube.com%2Fhowyoutubeworks%3Futm_source%3Dythp%26utm_medium%3DLeftNav%26utm_campaign%3Dytgen)[Test new features](https://www.youtube.com/new) © 2025 Google LLC
Readable Markdown	null
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	en
Author	null
Publish Time	not set
Original Publish Time	not set
Republished	No
Word Count (Total)	29
Word Count (Content)	25
Links
External Links	4
Internal Links	17
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	198
TTFB (ms)	91
Download Size (bytes)	75,783
Shard	51 (laksa)
Root Hash	3907445400264388851
Unparsed URL	com,youtube!www,/channel/UCPFStg7VlgvjB3Weyx5D7zg s443

🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

1. Shard Calculation

Query:

Response:

2. Crawled Status Check

Query:

Response:

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

Page Info Filters

Page Details