Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 150 (from laksa006)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa150.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 = 93 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://npg.si.edu/blog/st-patricks-day-america\')), getAhrefsUnparsedNoserviceFromURL(\'https://npg.si.edu/blog/st-patricks-day-america\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/npg.si.edu\/blog\/st-patricks-day-america","crawl_time":1772392734,"first_indexed_time":1558088734,"http_code":200,"src_unparsed":"edu,si!npg,\/blog\/st-patricks-day-america s443","src_root_hash":"3913164597925578750","history_drop_reason":null,"meta_title":"St. Patrick's Day in America | National Portrait Gallery","meta_descriptions":["Dion Boucicault \/ Jose Maria Mora \/ c. 1874 \/ National Portrait Gallery, Smithsonian Institution St. Patrick’s Day as we now know is not as it always was. Saint Patrick was originally celebrated for bringing Christianity to Ireland in the fifth century. In Ireland, up until the mid-twentieth century, the holiday remained modest and grounded in religion. It was not until the"],"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":1558088734,"attrs_is_republished":0,"attrs_nr_words":"776","attrs_boilerpipe_nr_words":"501","body_ext_links_number":8,"body_int_links_number":51,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":280,"download_ttfb_msec":279,"download_size":10881}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	3.1 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://npg.si.edu/blog/st-patricks-day-america
Last Crawled	2026-03-01 19:18:54 (3 months ago)
First Indexed	2019-05-17 10:25:34 (7 years ago)
HTTP Status Code	200
Content
Meta Title	St. Patrick's Day in America \| National Portrait Gallery
Meta Description	Dion Boucicault / Jose Maria Mora / c. 1874 / National Portrait Gallery, Smithsonian Institution St. Patrick’s Day as we now know is not as it always was. Saint Patrick was originally celebrated for bringing Christianity to Ireland in the fifth century. In Ireland, up until the mid-twentieth century, the holiday remained modest and grounded in religion. It was not until the
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	2019-05-17 10:25:34 (7 years ago)
Republished	No
Word Count (Total)	776
Word Count (Content)	501
Links
External Links	8
Internal Links	51
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	280
TTFB (ms)	279
Download Size (bytes)	10,881
Location
Host ID	150 (laksa150)
Partition ID	93
Root Hash	3913164597925578750
Unparsed URL	edu,si!npg,/blog/st-patricks-day-america 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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