🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 79 (from laksa095)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa079.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 = 94 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.simplilearn.com/tutorials/data-structure-tutorial/bellman-ford-algorithm\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.simplilearn.com/tutorials/data-structure-tutorial/bellman-ford-algorithm\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.simplilearn.com\/tutorials\/data-structure-tutorial\/bellman-ford-algorithm","crawl_time":1776296132,"first_indexed_time":1637849239,"http_code":200,"src_unparsed":"com,simplilearn!www,\/tutorials\/data-structure-tutorial\/bellman-ford-algorithm s443","src_root_hash":"17406570482395038879","history_drop_reason":null,"meta_title":"Bellman-Ford Algorithm: Pseudocode, Time Complexity and Examples | Simplilearn","meta_descriptions":["Explore what the Bellman Ford algorithm is and how it works. Learn to understand the pseudocode, time complexity for applying the algorithm and the applications and uses."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":812,\"\/Computers_and_Electronics\/Programming\":750,\"\/Computers_and_Electronics\/Programming\/Development_Tools\":291,\"\/Science\":265,\"\/Science\/Mathematics\":154,\"\/Science\/Mathematics\/Other\":141}","ml_types_json":"{\"\/Article\":998,\"\/Article\/Tutorial_or_Guide\":918}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":"Soni Upadhyay","attrs_publish_time":0,"attrs_original_publish_time":1637849239,"attrs_is_republished":0,"attrs_nr_words":"4387","attrs_boilerpipe_nr_words":"2066","body_ext_links_number":15,"body_int_links_number":185,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":337,"download_ttfb_msec":335,"download_size":72962}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 79 · Partition 94

laksa079

17406570482395038879

📄

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`	1.6 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

Page Details

Property

Value

URL

https://www.simplilearn.com/tutorials/data-structure-tutorial/bellman-ford-algorithm

Last Crawled

2026-04-15 23:35:32 (1 month ago)

First Indexed

2021-11-25 14:07:19 (4 years ago)

HTTP Status Code

200

Content

Meta Title

Bellman-Ford Algorithm: Pseudocode, Time Complexity and Examples | Simplilearn

Meta Description

Explore what the Bellman Ford algorithm is and how it works. Learn to understand the pseudocode, time complexity for applying the algorithm and the applications and uses.

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

/Computers_and_Electronics		81.2%
/Computers_and_Electronics/Programming		75.0%
/Computers_and_Electronics/Programming/Development_Tools		29.1%
/Science		26.5%
/Science/Mathematics		15.4%
/Science/Mathematics/Other		14.1%

Raw JSON

{
    "/Computers_and_Electronics": 812,
    "/Computers_and_Electronics/Programming": 750,
    "/Computers_and_Electronics/Programming/Development_Tools": 291,
    "/Science": 265,
    "/Science/Mathematics": 154,
    "/Science/Mathematics/Other": 141
}

ML Page Types

/Article		99.8%
/Article/Tutorial_or_Guide		91.8%

Raw JSON

{
    "/Article": 998,
    "/Article/Tutorial_or_Guide": 918
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

Soni Upadhyay

Publish Time

not set

Original Publish Time

2021-11-25 14:07:19 (4 years ago)

Republished

Word Count (Total)

4,387

Word Count (Content)

2,066

Links

External Links

Internal Links

185

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Redirect Target

null

Performance

Download Time (ms)

337

TTFB (ms)

335

Download Size (bytes)

72,962

Location

Host ID

79 (laksa079)

Partition ID

Root Hash

17406570482395038879

Unparsed URL

com,simplilearn!www,/tutorials/data-structure-tutorial/bellman-ford-algorithm s443