🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 182 (from laksa140)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa182.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 = 1 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.techtarget.com/whatis/definition/superposition\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.techtarget.com/whatis/definition/superposition\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.techtarget.com\/whatis\/definition\/superposition","crawl_time":1777268213,"first_indexed_time":1649299979,"http_code":200,"src_unparsed":"com,techtarget!www,\/whatis\/definition\/superposition s443","src_root_hash":"17789036595607440382","history_drop_reason":null,"meta_title":"What is quantum superposition? | Definition from TechTarget","meta_descriptions":["Learn about superposition in quantum theory, the ability of a quantum system to act as if it is in multiple states at the same time until it is measured."],"meta_canonical":null,"ml_categories_json":"{\"\/Science\":761,\"\/Computers_and_Electronics\":444,\"\/Science\/Physics\":427,\"\/Computers_and_Electronics\/Software\":180,\"\/Computers_and_Electronics\/Software\/Educational_Software\":116}","ml_types_json":"{\"\/Article\":998,\"\/Article\/Definitions\":608}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":"Gavin Wright","attrs_publish_time":0,"attrs_original_publish_time":1649299979,"attrs_is_republished":0,"attrs_nr_words":"1935","attrs_boilerpipe_nr_words":"887","body_ext_links_number":25,"body_int_links_number":152,"meta_nofollow":0,"meta_noarchive":1,"props_was_rendered":1,"src_redirect":"","download_time_msec":1699,"download_ttfb_msec":968,"download_size":56721}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 182 · Partition 1

laksa182

17789036595607440382

📄

INDEXABLE

✅

CRAWLED

1 month ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.2 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

Page Details

Property

Value

URL

https://www.techtarget.com/whatis/definition/superposition

Last Crawled

2026-04-27 05:36:53 (1 month ago)

First Indexed

2022-04-07 02:52:59 (4 years ago)

HTTP Status Code

200

Content

Meta Title

What is quantum superposition? | Definition from TechTarget

Meta Description

Learn about superposition in quantum theory, the ability of a quantum system to act as if it is in multiple states at the same time until it is measured.

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

/Science		76.1%
/Computers_and_Electronics		44.4%
/Science/Physics		42.7%
/Computers_and_Electronics/Software		18.0%
/Computers_and_Electronics/Software/Educational_Software		11.6%

Raw JSON

{
    "/Science": 761,
    "/Computers_and_Electronics": 444,
    "/Science/Physics": 427,
    "/Computers_and_Electronics/Software": 180,
    "/Computers_and_Electronics/Software/Educational_Software": 116
}

ML Page Types

/Article		99.8%
/Article/Definitions		60.8%

Raw JSON

{
    "/Article": 998,
    "/Article/Definitions": 608
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

Gavin Wright

Publish Time

not set

Original Publish Time

2022-04-07 02:52:59 (4 years ago)

Republished

Word Count (Total)

1,935

Word Count (Content)

887

Links

External Links

Internal Links

152

Technical SEO

Meta Nofollow

Meta Noarchive

Yes

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

1,699

TTFB (ms)

968

Download Size (bytes)

56,721

Location

Host ID

182 (laksa182)

Partition ID

Root Hash

17789036595607440382

Unparsed URL

com,techtarget!www,/whatis/definition/superposition s443