Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 153 (from laksa185)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa153.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, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://simconnect.simge.edu.sg/\')), getAhrefsUnparsedNoserviceFromURL(\'https://simconnect.simge.edu.sg/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/simconnect.simge.edu.sg\/","crawl_time":1775760470,"first_indexed_time":1489263327,"http_code":200,"src_unparsed":"sg,edu,simge!simconnect,\/ s443","src_root_hash":"2811320524706073753","history_drop_reason":null,"meta_title":"Site Under Maintenance","meta_descriptions":[],"attrs_boilerpipe_text":" \n \n \n \nSIMConnect is currently undergoing scheduled maintenance from 15th Feb 2026 (Sun) 12:00am - 16th Feb 2026 (Mon) 11:59pm SGT.\nThank you for your understanding.\n \n \n \n \n©Copyright  SIM.\nTerms and Conditions\n ","attrs_markdown":"|   |\n|---|\n|   |\n|   |\n|   |\n|   |\n| ![\\<%=131%\\>](https:\/\/simconnect.simge.edu.sg\/simconnect.jpg) |\n|   |\n| SIMConnect is currently undergoing scheduled maintenance from 15th Feb 2026 (Sun) 12:00am - 16th Feb 2026 (Mon) 11:59pm SGT.      Thank you for your understanding. |\n|   |\n| ©Copyright SIM. [Terms and Conditions](http:\/\/www.simge.edu.sg\/gePortalWeb\/appmanager\/web\/default?_nfpb=true&_st=&_pageLabel=pgDetailedPage&fid=TERMS_OF_USE) |","attrs_readable_markdown":null,"meta_canonical":null}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.1 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://simconnect.simge.edu.sg/
Last Crawled	2026-04-09 18:47:50 (1 day ago)
First Indexed	2017-03-11 20:15:27 (9 years ago)
HTTP Status Code	200
Meta Title	Site Under Maintenance
Meta Description	null
Meta Canonical	null
Boilerpipe Text	SIMConnect is currently undergoing scheduled maintenance from 15th Feb 2026 (Sun) 12:00am - 16th Feb 2026 (Mon) 11:59pm SGT. Thank you for your understanding. ©Copyright SIM. Terms and Conditions
Markdown	\| \| \|---\| \| \| \| \| \| \| \| \| \| ![\<%=131%\>](https://simconnect.simge.edu.sg/simconnect.jpg) \| \| \| \| SIMConnect is currently undergoing scheduled maintenance from 15th Feb 2026 (Sun) 12:00am - 16th Feb 2026 (Mon) 11:59pm SGT. Thank you for your understanding. \| \| \| \| ©Copyright SIM. [Terms and Conditions](http://www.simge.edu.sg/gePortalWeb/appmanager/web/default?_nfpb=true&_st=&_pageLabel=pgDetailedPage&fid=TERMS_OF_USE) \|
Readable Markdown	null
Shard	153 (laksa)
Root Hash	2811320524706073753
Unparsed URL	sg,edu,simge!simconnect,/ s443

🕷️ Crawler Inspector

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1. Shard Calculation

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Response:

2. Crawled Status Check

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Response:

3. Robots.txt Check

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4. Spam/Ban Check

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Response:

5. Seen Status Check

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