🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 73 (from laksa192)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa073.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(\'https://www.nfpa.org/for-professionals/codes-and-standards/list-of-codes-and-standards\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.nfpa.org/for-professionals/codes-and-standards/list-of-codes-and-standards\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.nfpa.org\/for-professionals\/codes-and-standards\/list-of-codes-and-standards","crawl_time":1776305220,"first_indexed_time":1699399354,"http_code":200,"src_unparsed":"org,nfpa!www,\/for-professionals\/codes-and-standards\/list-of-codes-and-standards s443","src_root_hash":"16821078808170642673","history_drop_reason":null,"meta_title":"The List of 300+ Codes and Standards","meta_descriptions":["Find, review, and buy more than 300 NFPA codes and standards—developed by technical experts and global volunteers."],"meta_canonical":null,"ml_categories_json":"{\"\/Law_and_Government\":826,\"\/Law_and_Government\/Public_Safety\":495,\"\/Business_and_Industrial\":275,\"\/Law_and_Government\/Public_Safety\/Emergency_Services\":260,\"\/Reference\":160,\"\/Reference\/Technical_Reference\":150,\"\/Science\":134,\"\/Science\/Engineering_and_Technology\":119,\"\/Science\/Engineering_and_Technology\/Other\":118,\"\/Business_and_Industrial\/Construction_and_Maintenance\":108}","ml_types_json":"{\"\/Listing_Collection\":818,\"\/Listing_Collection\/Product\":701}","ml_intent_types_json":"{\"Informational\":908,\"Commercial\":307}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1699399354,"attrs_is_republished":0,"attrs_nr_words":"1187","attrs_boilerpipe_nr_words":"6","body_ext_links_number":12,"body_int_links_number":167,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":251,"download_ttfb_msec":250,"download_size":29683}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 73 · Partition 13

laksa073

16821078808170642673

📄

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.nfpa.org/for-professionals/codes-and-standards/list-of-codes-and-standards

Last Crawled

2026-04-16 02:07:00 (1 month ago)

First Indexed

2023-11-07 23:22:34 (2 years ago)

HTTP Status Code

200

Content

Meta Title

The List of 300+ Codes and Standards

Meta Description

Find, review, and buy more than 300 NFPA codes and standards—developed by technical experts and global volunteers.

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

/Law_and_Government		82.6%
/Law_and_Government/Public_Safety		49.5%
/Business_and_Industrial		27.5%
/Law_and_Government/Public_Safety/Emergency_Services		26.0%
/Reference		16.0%
/Reference/Technical_Reference		15.0%
/Science		13.4%
/Science/Engineering_and_Technology		11.9%
/Science/Engineering_and_Technology/Other		11.8%
/Business_and_Industrial/Construction_and_Maintenance		10.8%

Raw JSON

{
    "/Law_and_Government": 826,
    "/Law_and_Government/Public_Safety": 495,
    "/Business_and_Industrial": 275,
    "/Law_and_Government/Public_Safety/Emergency_Services": 260,
    "/Reference": 160,
    "/Reference/Technical_Reference": 150,
    "/Science": 134,
    "/Science/Engineering_and_Technology": 119,
    "/Science/Engineering_and_Technology/Other": 118,
    "/Business_and_Industrial/Construction_and_Maintenance": 108
}

ML Page Types

/Listing_Collection		81.8%
/Listing_Collection/Product		70.1%

Raw JSON

{
    "/Listing_Collection": 818,
    "/Listing_Collection/Product": 701
}

ML Intent Types

Informational		90.8%
Commercial		30.7%

Raw JSON

{
    "Informational": 908,
    "Commercial": 307
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2023-11-07 23:22:34 (2 years ago)

Republished

Word Count (Total)

1,187

Word Count (Content)

Links

External Links

Internal Links

167

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

251

TTFB (ms)

250

Download Size (bytes)

29,683

Location

Host ID

73 (laksa073)

Partition ID

Root Hash

16821078808170642673

Unparsed URL

org,nfpa!www,/for-professionals/codes-and-standards/list-of-codes-and-standards s443