Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 180 (from laksa051)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa180.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 = 54 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://6857simon.csail.mit.edu/allergic-reaction-to-shellfish\')), getAhrefsUnparsedNoserviceFromURL(\'https://6857simon.csail.mit.edu/allergic-reaction-to-shellfish\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/6857simon.csail.mit.edu\/allergic-reaction-to-shellfish","crawl_time":1756831476,"first_indexed_time":0,"http_code":200,"src_unparsed":"edu,mit!csail,6857simon,\/allergic-reaction-to-shellfish s443","src_root_hash":"10722954425220430980","history_drop_reason":null,"meta_title":"Understanding Allergic Reaction to Shellfish Symptoms and Treatment - CodeForge Studio","meta_descriptions":["Discover the dangers of an allergic reaction to shellfish, a common and potentially life-threatening condition. Learn about shellfish allergy symptoms, causes, and treatment options. Understand the differences between shellfish intolerance and allergy, and find out how to manage shellfish allergy, including prevention and emergency response tips for seafood allergy sufferers."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en-us","attrs_author":null,"attrs_publish_time":1748345163,"attrs_original_publish_time":1748345163,"attrs_is_republished":0,"attrs_nr_words":"888","attrs_boilerpipe_nr_words":"737","body_ext_links_number":0,"body_int_links_number":10,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":1963,"download_ttfb_msec":1963,"download_size":8499}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	9.1 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://6857simon.csail.mit.edu/allergic-reaction-to-shellfish
Last Crawled	2025-09-02 16:44:36 (9 months ago)
First Indexed	not set
HTTP Status Code	200
Content
Meta Title	Understanding Allergic Reaction to Shellfish Symptoms and Treatment - CodeForge Studio
Meta Description	Discover the dangers of an allergic reaction to shellfish, a common and potentially life-threatening condition. Learn about shellfish allergy symptoms, causes, and treatment options. Understand the differences between shellfish intolerance and allergy, and find out how to manage shellfish allergy, including prevention and emergency response tips for seafood allergy sufferers.
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-us
Author	null
Publish Time	2025-05-27 11:26:03 (1 year ago)
Original Publish Time	2025-05-27 11:26:03 (1 year ago)
Republished	No
Word Count (Total)	888
Word Count (Content)	737
Links
External Links	0
Internal Links	10
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	1,963
TTFB (ms)	1,963
Download Size (bytes)	8,499
Location
Host ID	180 (laksa180)
Partition ID	54
Root Hash	10722954425220430980
Unparsed URL	edu,mit!csail,6857simon,/allergic-reaction-to-shellfish s443

🕷️ Crawler Inspector

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Direct Parameter Lookup

1. Shard Calculation

Query:

Response:

2. Crawled Status Check

Query:

Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

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