Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 77 (from laksa046)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa077.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://developers.facebook.com/tools/debug/\')), getAhrefsUnparsedNoserviceFromURL(\'https://developers.facebook.com/tools/debug/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/developers.facebook.com\/tools\/debug\/","crawl_time":1770448080,"first_indexed_time":0,"http_code":200,"src_unparsed":"com,facebook!developers,\/tools\/debug\/ s443","src_root_hash":"6329005247723782277","history_drop_reason":null,"meta_title":"Sharing Debugger - Meta for Developers","meta_descriptions":[],"attrs_boilerpipe_text":"Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.\nLog into Facebook to use this tool.\nLog In","attrs_markdown":"![](https:\/\/www.facebook.com\/tr?id=675141479195042&ev=PageView&noscript=1)\n\n![](https:\/\/www.facebook.com\/tr?id=574561515946252&ev=PageView&noscript=1)\n\n![](https:\/\/www.facebook.com\/tr?id=1754628768090156&ev=PageView&noscript=1)\n\n![](https:\/\/facebook.com\/security\/hsts-pixel.gif?c=3.2.5)\n\nSharing Debugger\n\nSharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.\n\nLog into Facebook to use this tool.\n\n[Log In](https:\/\/business.facebook.com\/business\/loginpage\/?next=https%3A%2F%2Fdevelopers.facebook.com%2Ftools%2Fdebug%2F%3Fnav_ref%3Dbiz_unified_f3_login_page_to_dfc&login_options%5B0%5D=FB&login_options%5B1%5D=SSO&app=436761779744620&is_work_accounts=1&config_ref=biz_login_tool_flavor_dfc)","attrs_readable_markdown":"Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.\n\nLog into Facebook to use this tool.\n\n[Log In](https:\/\/business.facebook.com\/business\/loginpage\/?next=https%3A%2F%2Fdevelopers.facebook.com%2Ftools%2Fdebug%2F%3Fnav_ref%3Dbiz_unified_f3_login_page_to_dfc&login_options%5B0%5D=FB&login_options%5B1%5D=SSO&app=436761779744620&is_work_accounts=1&config_ref=biz_login_tool_flavor_dfc)","meta_canonical":"com,facebook!www,\/tools\/debug\/ s443"}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.9 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	FAIL	`meta_canonical IS NULL OR = '' OR = src_unparsed`	com,facebook!www,/tools/debug/ s443

Property	Value
URL	https://developers.facebook.com/tools/debug/
Last Crawled	2026-02-07 07:08:00 (1 month ago)
First Indexed	not set
HTTP Status Code	200
Meta Title	Sharing Debugger - Meta for Developers
Meta Description	null
Meta Canonical	com,facebook!www,/tools/debug/ s443
Boilerpipe Text	Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags. Log into Facebook to use this tool. Log In
Markdown	![](https://www.facebook.com/tr?id=675141479195042&ev=PageView&noscript=1) ![](https://www.facebook.com/tr?id=574561515946252&ev=PageView&noscript=1) ![](https://www.facebook.com/tr?id=1754628768090156&ev=PageView&noscript=1) ![](https://facebook.com/security/hsts-pixel.gif?c=3.2.5) Sharing Debugger Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags. Log into Facebook to use this tool. [Log In](https://business.facebook.com/business/loginpage/?next=https%3A%2F%2Fdevelopers.facebook.com%2Ftools%2Fdebug%2F%3Fnav_ref%3Dbiz_unified_f3_login_page_to_dfc&login_options%5B0%5D=FB&login_options%5B1%5D=SSO&app=436761779744620&is_work_accounts=1&config_ref=biz_login_tool_flavor_dfc)
Readable Markdown	Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags. Log into Facebook to use this tool. [Log In](https://business.facebook.com/business/loginpage/?next=https%3A%2F%2Fdevelopers.facebook.com%2Ftools%2Fdebug%2F%3Fnav_ref%3Dbiz_unified_f3_login_page_to_dfc&login_options%5B0%5D=FB&login_options%5B1%5D=SSO&app=436761779744620&is_work_accounts=1&config_ref=biz_login_tool_flavor_dfc)
Shard	77 (laksa)
Root Hash	6329005247723782277
Unparsed URL	com,facebook!developers,/tools/debug/ s443

🕷️ Crawler Inspector

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1. Shard Calculation

Query:

Response:

2. Crawled Status Check

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Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

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