🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 92 (from laksa029)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa092.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 = 95 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.wikihow.com/Calculate-Voltage-Across-a-Resistor\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.wikihow.com/Calculate-Voltage-Across-a-Resistor\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.wikihow.com\/Calculate-Voltage-Across-a-Resistor","crawl_time":1779842766,"first_indexed_time":1508513032,"http_code":200,"src_unparsed":"com,wikihow!www,\/Calculate-Voltage-Across-a-Resistor s443","src_root_hash":"12431216878206919092","history_drop_reason":null,"meta_title":"How to Calculate Voltage Across a Resistor (with Pictures)","meta_descriptions":["Before you can calculate the voltage across a resistor, you'll first have to determine what kind of circuit you are using. If you need a review of the basic terms or a little help understanding circuits, start with the first section...."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":619,\"\/Computers_and_Electronics\/Electronics_and_Electrical\":592,\"\/Science\":560,\"\/Science\/Physics\":525,\"\/Computers_and_Electronics\/Electronics_and_Electrical\/Electronic_Components\":289}","ml_types_json":"{\"\/Article\":998,\"\/Article\/How_to\":820}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":"Mantas Silvanavicius","attrs_publish_time":0,"attrs_original_publish_time":1508513032,"attrs_is_republished":0,"attrs_nr_words":"4155","attrs_boilerpipe_nr_words":"2093","body_ext_links_number":25,"body_int_links_number":150,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":682,"download_ttfb_msec":538,"download_size":123644}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 92 · Partition 95

laksa092

12431216878206919092

📄

INDEXABLE

✅

CRAWLED

7 days 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`	0.2 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.wikihow.com/Calculate-Voltage-Across-a-Resistor

Last Crawled

2026-05-27 00:46:06 (7 days ago)

First Indexed

2017-10-20 15:23:52 (8 years ago)

HTTP Status Code

200

Content

Meta Title

How to Calculate Voltage Across a Resistor (with Pictures)

Meta Description

Before you can calculate the voltage across a resistor, you'll first have to determine what kind of circuit you are using. If you need a review of the basic terms or a little help understanding circuits, start with the first section....

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		61.9%
/Computers_and_Electronics/Electronics_and_Electrical		59.2%
/Science		56.0%
/Science/Physics		52.5%
/Computers_and_Electronics/Electronics_and_Electrical/Electronic_Components		28.9%

Raw JSON

{
    "/Computers_and_Electronics": 619,
    "/Computers_and_Electronics/Electronics_and_Electrical": 592,
    "/Science": 560,
    "/Science/Physics": 525,
    "/Computers_and_Electronics/Electronics_and_Electrical/Electronic_Components": 289
}

ML Page Types

/Article		99.8%
/Article/How_to		82.0%

Raw JSON

{
    "/Article": 998,
    "/Article/How_to": 820
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

Mantas Silvanavicius

Publish Time

not set

Original Publish Time

2017-10-20 15:23:52 (8 years ago)

Republished

Word Count (Total)

4,155

Word Count (Content)

2,093

Links

External Links

Internal Links

150

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

682

TTFB (ms)

538

Download Size (bytes)

123,644

Location

Host ID

92 (laksa092)

Partition ID

Root Hash

12431216878206919092

Unparsed URL

com,wikihow!www,/Calculate-Voltage-Across-a-Resistor s443