Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 191 (from laksa084)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa191.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, 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 int_partition_id = 19 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://alex-jacobs.com/posts/pythonasync/\')), getAhrefsUnparsedNoserviceFromURL(\'https://alex-jacobs.com/posts/pythonasync/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/alex-jacobs.com\/posts\/pythonasync\/","crawl_time":1779785623,"first_indexed_time":1739906352,"http_code":200,"src_unparsed":"com,alex-jacobs!\/posts\/pythonasync\/ s443","src_root_hash":"16133891191843403991","history_drop_reason":null,"meta_title":"Deep Dive into Python Async Programming | Alex Jacobs","meta_descriptions":["A deep dive into Python's asynchronous programming model, exploring the event loop, coroutines, tasks, futures, and the under-the-hood mechanisms that make it all work."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":"Alex Jacobs","attrs_publish_time":1706400000,"attrs_original_publish_time":1706400000,"attrs_is_republished":0,"attrs_nr_words":"4062","attrs_boilerpipe_nr_words":"3821","body_ext_links_number":6,"body_int_links_number":8,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":572,"download_ttfb_msec":571,"download_size":13090}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.3 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

Property	Value
URL	https://alex-jacobs.com/posts/pythonasync/
Last Crawled	2026-05-26 08:53:43 (8 days ago)
First Indexed	2025-02-18 19:19:12 (1 year ago)
HTTP Status Code	200
Content
Meta Title	Deep Dive into Python Async Programming \| Alex Jacobs
Meta Description	A deep dive into Python's asynchronous programming model, exploring the event loop, coroutines, tasks, futures, and the under-the-hood mechanisms that make it all work.
Meta Canonical	null
Boilerpipe Text	heavy column, fetched on demand
Markdown	heavy column, fetched on demand
Readable Markdown	heavy column, fetched on demand
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	en
Author	Alex Jacobs
Publish Time	2024-01-28 00:00:00 (2 years ago)
Original Publish Time	2024-01-28 00:00:00 (2 years ago)
Republished	No
Word Count (Total)	4,062
Word Count (Content)	3,821
Links
External Links	6
Internal Links	8
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	572
TTFB (ms)	571
Download Size (bytes)	13,090
Location
Host ID	191 (laksa191)
Partition ID	19
Root Hash	16133891191843403991
Unparsed URL	com,alex-jacobs!/posts/pythonasync/ s443

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