🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 185 (from laksa087)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa185.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 = 82 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.nber.org/papers/w29147\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.nber.org/papers/w29147\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.nber.org\/papers\/w29147","crawl_time":1779573682,"first_indexed_time":1629125462,"http_code":200,"src_unparsed":"org,nber!www,\/papers\/w29147 s443","src_root_hash":"16229434317321816585","history_drop_reason":null,"meta_title":"Publishing Economics: How Slow? Why Slow? Is Slow Productive? Fixing Slow? | NBER","meta_descriptions":["Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, and business professionals."],"meta_canonical":null,"ml_categories_json":"{\"\/Business_and_Industrial\":324,\"\/Finance\":236,\"\/Science\":213,\"\/Business_and_Industrial\/Business_Education\":177,\"\/Science\/Other\":165,\"\/Finance\/Other\":103,\"\/Books_and_Literature\":102}","ml_types_json":"{\"\/Article\":885,\"\/Article\/Study_or_Research_Findings\":523}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":null,"attrs_publish_time":1628769600,"attrs_original_publish_time":1628769600,"attrs_is_republished":0,"attrs_nr_words":"896","attrs_boilerpipe_nr_words":"131","body_ext_links_number":12,"body_int_links_number":126,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":402,"download_ttfb_msec":401,"download_size":22016}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 185 · Partition 82

laksa185

16229434317321816585

📄

INDEXABLE

✅

CRAWLED

10 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`	0.4 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.nber.org/papers/w29147

Last Crawled

2026-05-23 22:01:22 (10 days ago)

First Indexed

2021-08-16 14:51:02 (4 years ago)

HTTP Status Code

200

Content

Meta Title

Publishing Economics: How Slow? Why Slow? Is Slow Productive? Fixing Slow? | NBER

Meta Description

Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, and business professionals.

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

/Business_and_Industrial		32.4%
/Finance		23.6%
/Science		21.3%
/Business_and_Industrial/Business_Education		17.7%
/Science/Other		16.5%
/Finance/Other		10.3%
/Books_and_Literature		10.2%

Raw JSON

{
    "/Business_and_Industrial": 324,
    "/Finance": 236,
    "/Science": 213,
    "/Business_and_Industrial/Business_Education": 177,
    "/Science/Other": 165,
    "/Finance/Other": 103,
    "/Books_and_Literature": 102
}

ML Page Types

/Article		88.5%
/Article/Study_or_Research_Findings		52.3%

Raw JSON

{
    "/Article": 885,
    "/Article/Study_or_Research_Findings": 523
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

null

Publish Time

2021-08-12 12:00:00 (4 years ago)

Original Publish Time

2021-08-12 12:00:00 (4 years ago)

Republished

Word Count (Total)

896

Word Count (Content)

131

Links

External Links

Internal Links

126

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

402

TTFB (ms)

401

Download Size (bytes)

22,016

Location

Host ID

185 (laksa185)

Partition ID

Root Hash

16229434317321816585

Unparsed URL

org,nber!www,/papers/w29147 s443