Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 37 (from laksa138)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa037.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://neo4j.com/docs/cypher-manual/current/clauses/unwind/\')), getAhrefsUnparsedNoserviceFromURL(\'https://neo4j.com/docs/cypher-manual/current/clauses/unwind/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/neo4j.com\/docs\/cypher-manual\/current\/clauses\/unwind\/","crawl_time":1745619894,"first_indexed_time":1557078200,"http_code":200,"src_unparsed":"com,neo4j!\/docs\/cypher-manual\/current\/clauses\/unwind\/ s443","src_root_hash":"12828843287614304637","history_drop_reason":"disallowed","meta_title":"UNWIND - Cypher Manual","meta_descriptions":["`UNWIND` expands a list into a sequence of rows."],"attrs_boilerpipe_text":"Using an empty list with  UNWIND  will produce no rows, irrespective of whether or not any rows existed beforehand, or whether or not other values are being projected. Essentially,  UNWIND []  reduces the number of rows to zero, and thus causes the query to cease its execution, returning no results.\nThis has value in cases such as  UNWIND v , where  v  is a variable from an earlier clause that may or may not be an empty list — when it is an empty list, this will behave just as a  MATCH  that has no results. UNWIND [] AS empty\nRETURN 'literal_that_is_not_returned' Table 5. Result (empty result) Rows: 0 To avoid inadvertently using  UNWIND  on an empty list,  CASE  may be used to replace an empty list with a  null : WITH [] AS list\nUNWIND\n  CASE\n    WHEN list = [] THEN [null]\n    ELSE list\n  END AS emptylist\nRETURN emptylist","attrs_markdown":null,"attrs_readable_markdown":null,"meta_canonical":null}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	11.8 months ago
History drop	FAIL	`isNull(history_drop_reason)`	disallowed
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://neo4j.com/docs/cypher-manual/current/clauses/unwind/
Last Crawled	2025-04-25 22:24:54 (11 months ago)
First Indexed	2019-05-05 17:43:20 (6 years ago)
HTTP Status Code	200
Meta Title	UNWIND - Cypher Manual
Meta Description	`UNWIND` expands a list into a sequence of rows.
Meta Canonical	null
Boilerpipe Text	Using an empty list with UNWIND will produce no rows, irrespective of whether or not any rows existed beforehand, or whether or not other values are being projected. Essentially, UNWIND [] reduces the number of rows to zero, and thus causes the query to cease its execution, returning no results. This has value in cases such as UNWIND v , where v is a variable from an earlier clause that may or may not be an empty list — when it is an empty list, this will behave just as a MATCH that has no results. UNWIND [] AS empty RETURN 'literal_that_is_not_returned' Table 5. Result (empty result) Rows: 0 To avoid inadvertently using UNWIND on an empty list, CASE may be used to replace an empty list with a null : WITH [] AS list UNWIND CASE WHEN list = [] THEN [null] ELSE list END AS emptylist RETURN emptylist
Markdown	null
Readable Markdown	null
Shard	37 (laksa)
Root Hash	12828843287614304637
Unparsed URL	com,neo4j!/docs/cypher-manual/current/clauses/unwind/ s443

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