Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 177 (from laksa176)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa177.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 = 24 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.singsaver.com.sg/blog/property-stamp-duty-singapore\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.singsaver.com.sg/blog/property-stamp-duty-singapore\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.singsaver.com.sg\/blog\/property-stamp-duty-singapore","crawl_time":1779087179,"first_indexed_time":1617934196,"http_code":200,"src_unparsed":"sg,com,singsaver!www,\/blog\/property-stamp-duty-singapore s443","src_root_hash":"1354253889108504977","history_drop_reason":null,"meta_title":"Stamp Duty Singapore: BSD, ABSD, SSD And How They Affect You","meta_descriptions":["Whether you’re buying or selling a home, here’s what you must know about the various stamp duties, namely BSD, ABSD and SSD."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en-sg","attrs_author":"Yen Joon","attrs_publish_time":0,"attrs_original_publish_time":1617934196,"attrs_is_republished":0,"attrs_nr_words":"3375","attrs_boilerpipe_nr_words":"1951","body_ext_links_number":47,"body_int_links_number":310,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":338,"download_ttfb_msec":334,"download_size":71632}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.5 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://www.singsaver.com.sg/blog/property-stamp-duty-singapore
Last Crawled	2026-05-18 06:52:59 (16 days ago)
First Indexed	2021-04-09 02:09:56 (5 years ago)
HTTP Status Code	200
Content
Meta Title	Stamp Duty Singapore: BSD, ABSD, SSD And How They Affect You
Meta Description	Whether you’re buying or selling a home, here’s what you must know about the various stamp duties, namely BSD, ABSD and SSD.
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-sg
Author	Yen Joon
Publish Time	not set
Original Publish Time	2021-04-09 02:09:56 (5 years ago)
Republished	No
Word Count (Total)	3,375
Word Count (Content)	1,951
Links
External Links	47
Internal Links	310
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	338
TTFB (ms)	334
Download Size (bytes)	71,632
Location
Host ID	177 (laksa177)
Partition ID	24
Root Hash	1354253889108504977
Unparsed URL	sg,com,singsaver!www,/blog/property-stamp-duty-singapore s443

🕷️ Crawler Inspector

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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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