🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 65 (from laksa118)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa065.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 = 13 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'http://www.learningaboutelectronics.com/Articles/Voltage-divider-resistor-calculator.php\')), getAhrefsUnparsedNoserviceFromURL(\'http://www.learningaboutelectronics.com/Articles/Voltage-divider-resistor-calculator.php\'))) FORMAT JSONEachRow'

Response:

{"found_url":"http:\/\/www.learningaboutelectronics.com\/Articles\/Voltage-divider-resistor-calculator.php","crawl_time":1779761979,"first_indexed_time":1408545006,"http_code":200,"src_unparsed":"com,learningaboutelectronics!www,\/Articles\/Voltage-divider-resistor-calculator.php h80","src_root_hash":"13858397897340322665","history_drop_reason":null,"meta_title":"Voltage Divider Resistor Calculator","meta_descriptions":["This is an online calculator which calculates the resistor value, R2, of a voltage divider circuit."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":881,\"\/Computers_and_Electronics\/Electronics_and_Electrical\":823,\"\/Computers_and_Electronics\/Electronics_and_Electrical\/Electronic_Components\":651,\"\/Science\":243,\"\/Science\/Physics\":166}","ml_types_json":"{\"\/Interactive_Tools\":965,\"\/Interactive_Tools\/Calculator\":957}","ml_intent_types_json":"{\"Informational\":911,\"Commercial\":136,\"Transactional\":123}","meta_language":null,"attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1408545006,"attrs_is_republished":0,"attrs_nr_words":"420","attrs_boilerpipe_nr_words":"330","body_ext_links_number":0,"body_int_links_number":21,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":190,"download_ttfb_msec":190,"download_size":3057}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 65 · Partition 13

laksa065

13858397897340322665

📄

INDEXABLE

✅

CRAWLED

8 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`	0.3 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

http://www.learningaboutelectronics.com/Articles/Voltage-divider-resistor-calculator.php

Last Crawled

2026-05-26 02:19:39 (8 days ago)

First Indexed

2014-08-20 14:30:06 (11 years ago)

HTTP Status Code

200

Content

Meta Title

Voltage Divider Resistor Calculator

Meta Description

This is an online calculator which calculates the resistor value, R2, of a voltage divider circuit.

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		88.1%
/Computers_and_Electronics/Electronics_and_Electrical		82.3%
/Computers_and_Electronics/Electronics_and_Electrical/Electronic_Components		65.1%
/Science		24.3%
/Science/Physics		16.6%

Raw JSON

{
    "/Computers_and_Electronics": 881,
    "/Computers_and_Electronics/Electronics_and_Electrical": 823,
    "/Computers_and_Electronics/Electronics_and_Electrical/Electronic_Components": 651,
    "/Science": 243,
    "/Science/Physics": 166
}

ML Page Types

/Interactive_Tools		96.5%
/Interactive_Tools/Calculator		95.7%

Raw JSON

{
    "/Interactive_Tools": 965,
    "/Interactive_Tools/Calculator": 957
}

ML Intent Types

Informational		91.1%
Commercial		13.6%
Transactional		12.3%

Raw JSON

{
    "Informational": 911,
    "Commercial": 136,
    "Transactional": 123
}

Content Metadata

Language

null

Author

null

Publish Time

not set

Original Publish Time

2014-08-20 14:30:06 (11 years ago)

Republished

Word Count (Total)

420

Word Count (Content)

330

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Redirect Target

null

Performance

Download Time (ms)

190

TTFB (ms)

190

Download Size (bytes)

3,057

Location

Host ID

65 (laksa065)

Partition ID

Root Hash

13858397897340322665

Unparsed URL

com,learningaboutelectronics!www,/Articles/Voltage-divider-resistor-calculator.php h80