Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 42 (from laksa105)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa042.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 = 81 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://explore-mag.com/how-to-survive-if-you-get-lost-in-the-backcountry/\')), getAhrefsUnparsedNoserviceFromURL(\'https://explore-mag.com/how-to-survive-if-you-get-lost-in-the-backcountry/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/explore-mag.com\/how-to-survive-if-you-get-lost-in-the-backcountry\/","crawl_time":1780406411,"first_indexed_time":1740481637,"http_code":200,"src_unparsed":"com,explore-mag!\/how-to-survive-if-you-get-lost-in-the-backcountry\/ s443","src_root_hash":"480939606998876242","history_drop_reason":null,"meta_title":"How to Survive if You Get Lost in the Backcountry – Explore Magazine","meta_descriptions":["Getting lost in the backcountry can happen to anyone, even the most seasoned adventurers."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en-ca","attrs_author":"Vivian Chung","attrs_publish_time":1740137401,"attrs_original_publish_time":1740137401,"attrs_is_republished":0,"attrs_nr_words":"1957","attrs_boilerpipe_nr_words":"1638","body_ext_links_number":15,"body_int_links_number":51,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":3321,"download_ttfb_msec":3319,"download_size":43308}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0 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://explore-mag.com/how-to-survive-if-you-get-lost-in-the-backcountry/
Last Crawled	2026-06-02 13:20:11 (1 day ago)
First Indexed	2025-02-25 11:07:17 (1 year ago)
HTTP Status Code	200
Content
Meta Title	How to Survive if You Get Lost in the Backcountry – Explore Magazine
Meta Description	Getting lost in the backcountry can happen to anyone, even the most seasoned adventurers.
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-ca
Author	Vivian Chung
Publish Time	2025-02-21 11:30:01 (1 year ago)
Original Publish Time	2025-02-21 11:30:01 (1 year ago)
Republished	No
Word Count (Total)	1,957
Word Count (Content)	1,638
Links
External Links	15
Internal Links	51
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	3,321
TTFB (ms)	3,319
Download Size (bytes)	43,308
Location
Host ID	42 (laksa042)
Partition ID	81
Root Hash	480939606998876242
Unparsed URL	com,explore-mag!/how-to-survive-if-you-get-lost-in-the-backcountry/ s443

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1. Shard Calculation

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2. Crawled Status Check

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3. Robots.txt Check

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4. Spam/Ban Check

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Response:

5. Seen Status Check

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