Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 127 (from laksa191)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa127.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 = 79 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://scienceready.com.au/pages/introduction-to-electric-fields\')), getAhrefsUnparsedNoserviceFromURL(\'https://scienceready.com.au/pages/introduction-to-electric-fields\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/scienceready.com.au\/pages\/introduction-to-electric-fields","crawl_time":1779057722,"first_indexed_time":1704051073,"http_code":200,"src_unparsed":"au,com,scienceready!\/pages\/introduction-to-electric-fields s443","src_root_hash":"15975095180582195927","history_drop_reason":null,"meta_title":"Introduction to Electric Fields: The Basics – HSC Physics – Science Ready","meta_descriptions":["This topic is part of the HSC Physics course under the section Electrostatics. HSC Physics Syllabus using the electric field lines representation, model qualitatively the direction and strength of electric fields produced by: – simple point charges – pairs of charges – dipoles – parallel charged plates apply the elec"],"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":1704051073,"attrs_is_republished":0,"attrs_nr_words":"1654","attrs_boilerpipe_nr_words":"1034","body_ext_links_number":10,"body_int_links_number":36,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":191,"download_ttfb_msec":188,"download_size":75900}

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://scienceready.com.au/pages/introduction-to-electric-fields
Last Crawled	2026-05-17 22:42:02 (16 days ago)
First Indexed	2023-12-31 19:31:13 (2 years ago)
HTTP Status Code	200
Content
Meta Title	Introduction to Electric Fields: The Basics – HSC Physics – Science Ready
Meta Description	This topic is part of the HSC Physics course under the section Electrostatics. HSC Physics Syllabus using the electric field lines representation, model qualitatively the direction and strength of electric fields produced by: – simple point charges – pairs of charges – dipoles – parallel charged plates apply the elec
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	2023-12-31 19:31:13 (2 years ago)
Republished	No
Word Count (Total)	1,654
Word Count (Content)	1,034
Links
External Links	10
Internal Links	36
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	191
TTFB (ms)	188
Download Size (bytes)	75,900
Location
Host ID	127 (laksa127)
Partition ID	79
Root Hash	15975095180582195927
Unparsed URL	au,com,scienceready!/pages/introduction-to-electric-fields s443

🕷️ Crawler Inspector

URL Lookup

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

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Response:

5. Seen Status Check

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