Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 181 (from laksa128)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa181.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 = 68 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\'))) FORMAT JSONEachRow'

Response:

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

Query:

curl -X POST \
  'http://laksa181.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d '(SELECT getAhrefsURLFromUnparsed(dst_unparsed) AS found_url, dst_unparsed AS unparsed, dst_root_hash AS root_hash FROM crawler3.urls_local FINAL PREWHERE int_partition_id = 68 AND (dst_root_hash, dst_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\')))) UNION ALL (SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, src_unparsed AS unparsed, src_root_hash AS root_hash FROM web_queue.crawl5_local FINAL PREWHERE crawl_yyyymm >= toYYYYMM(today() - INTERVAL 2 MONTHS) AND int_partition_id = 68 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html\')))) FORMAT JSONEachRow'

Response:

Filter	Status	Condition	Details
HTTP status	N/A	`download_http_code = 200`	Not crawled
Age cutoff	N/A	`download_stamp > now() - 6 MONTH`	Not crawled
History drop	N/A	`isNull(history_drop_reason)`	Not crawled
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	N/A	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not crawled

Property	Value
URL	https://pi.math.cornell.edu/~mec/2006-2007/EYH/ErrorCorrectingCodes.html
Location
Host ID	181 (laksa181)
Partition ID	68
Root Hash	14620342054419313781

🕷️ 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

Query:

Response:

Page Info Filters

Page Details