Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 110 (from laksa006)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa110.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 = 48 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.ummhealth.org/health-library/having-an-external-ventricular-drain-evd\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.ummhealth.org/health-library/having-an-external-ventricular-drain-evd\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.ummhealth.org\/health-library\/having-an-external-ventricular-drain-evd","crawl_time":1778930543,"first_indexed_time":0,"http_code":200,"src_unparsed":"org,ummhealth!www,\/health-library\/having-an-external-ventricular-drain-evd s443","src_root_hash":"3203128818065089710","history_drop_reason":null,"meta_title":"Having an External Ventricular Drain (EVD) | UMass Memorial Health","meta_descriptions":["An external ventricular drain (EVD) is a thin tube that drains extra cerebrospinal fluid (CSF) from your brain. The extra fluid may be caused by illness or injury."],"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":"1577","attrs_boilerpipe_nr_words":"738","body_ext_links_number":6,"body_int_links_number":110,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":143,"download_ttfb_msec":142,"download_size":30259}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.6 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://www.ummhealth.org/health-library/having-an-external-ventricular-drain-evd
Last Crawled	2026-05-16 11:22:23 (18 days ago)
First Indexed	not set
HTTP Status Code	200
Content
Meta Title	Having an External Ventricular Drain (EVD) \| UMass Memorial Health
Meta Description	An external ventricular drain (EVD) is a thin tube that drains extra cerebrospinal fluid (CSF) from your brain. The extra fluid may be caused by illness or injury.
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	null
Publish Time	not set
Original Publish Time	not set
Republished	No
Word Count (Total)	1,577
Word Count (Content)	738
Links
External Links	6
Internal Links	110
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	143
TTFB (ms)	142
Download Size (bytes)	30,259
Location
Host ID	110 (laksa110)
Partition ID	48
Root Hash	3203128818065089710
Unparsed URL	org,ummhealth!www,/health-library/having-an-external-ventricular-drain-evd 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

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Page Details