🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 140 (from laksa000)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa140.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, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, 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 (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.yalemedicine.org/clinical-trials/magnetic-resonance-imaging-biomarkers-covid\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.yalemedicine.org/clinical-trials/magnetic-resonance-imaging-biomarkers-covid\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.yalemedicine.org\/clinical-trials\/magnetic-resonance-imaging-biomarkers-covid","crawl_time":1765039853,"first_indexed_time":1649337633,"http_code":200,"src_unparsed":"org,yalemedicine!www,\/clinical-trials\/magnetic-resonance-imaging-biomarkers-covid s443","src_root_hash":"1108864629008845940","history_drop_reason":null,"meta_title":"Are you are currently experiencing brain fog from Long COVID? | Clinical Trials | Yale Medicine","meta_descriptions":["If you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19. The purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19. Study procedures include (compensation provided): blood draws, MRI with contrast, complete a set of memory tasks and health surveys, and a lumbar puncture (optional). Co-enrollment in our Biobank study, HIC#1502015318 (with separate compensation provided)."],"attrs_boilerpipe_text":null,"attrs_markdown":"[Skip to Main Content](https:\/\/www.yalemedicine.org\/clinical-trials\/magnetic-resonance-imaging-biomarkers-covid#page-container)\n\n[1-877-YALEMDS](tel:+1-877-925-3637)\n\nSearch for\n\n[Specialists](https:\/\/www.yalemedicine.org\/search\/specialists)[Fact Sheets](https:\/\/www.yalemedicine.org\/conditions)[Departments](https:\/\/www.yalemedicine.org\/departments)[Clinical Trials](https:\/\/www.yalemedicine.org\/clinical-trials)[News](https:\/\/www.yalemedicine.org\/news)[Patient Tools](https:\/\/www.yalemedicine.org\/patient-tools)[For Medical Professionals](https:\/\/www.yalemedicine.org\/for-medical-professionals)\n***\n\n[1-877-YALEMDS](tel:+1-877-925-3637)\n\nPhase Pilot\n\n# Are you are currently experiencing brain fog from Long COVID?\n\n- Study HIC\\#:2000031278\n\n- Last Updated:11\/28\/2025\n\nIf you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19.\n\nThe purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19.\n\nStudy procedures include (compensation provided):\n\n- blood draws,\n- MRI with contrast,\n- complete a set of memory tasks and health surveys, and\n- a lumbar puncture (optional).\n\nCo-enrollment in our Biobank study, HIC\\#1502015318 (with separate compensation provided).\n\n### Contact Us\nFor more information about this study, including how to volunteer, contact:\n\nAllison Nelson\n\n- Phone Number: [1-475-375-6808](tel:+14753756808)\n- [longcovidstudies@yale.edu](mailto:longcovidstudies@yale.edu)\n\n### Help Us Discover\\!\nYou can help our team find trials you might be eligible for by creating a volunteer profile in MyChart. To get started, [create a volunteer profile](https:\/\/medicine.yale.edu\/ycci\/clinicaltrials\/find\/mychart\/), or contact [helpusdiscover@yale.edu](mailto:helpusdiscover@yale.edu), or call [\\+18779788343](tel:+18779788343) for more information.\n\n[CREATE A VOLUNTEER PROFILE](https:\/\/medicine.yale.edu\/ycci\/clinicaltrials\/volunteer\/mychart\/)\n\n## Trial Purpose and Description\nIf you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19.\n\nThe purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19.\n\nStudy procedures include (compensation provided):\n\n- blood draws,\n- MRI with contrast,\n- complete a set of memory tasks and health surveys, and\n- a lumbar puncture (optional).\n\nCo-enrollment in our Biobank study, HIC\\#1502015318 (with separate compensation provided).\n\n## Eligibility Criteria\n- Adults only;\n- Laboratory documented COVID-19 infection (PCR, rapid test, or pre-vaccine positive antibody test);\n- Persistent cognitive impairment post-COVID\n\n## Principal Investigator\n- [![](https:\/\/ysm-res.cloudinary.com\/image\/upload\/ar_1:1,c_fill,dpr_auto,f_auto,g_faces:auto,q_auto:eco,w_0.5\/v1\/yms\/prod\/a6ed26bf-d85a-4467-9722-c94dbd360a00)Lindsay McAlpine MD, BSc](https:\/\/www.yalemedicine.org\/specialists\/lindsay-mcalpine)\n\n## Sub-Investigators\n- Felipe Saceanu Leser\n- [Lindsay McAlpine](https:\/\/www.yalemedicine.org\/specialists\/lindsay-mcalpine)\n- [Long H. Tu](https:\/\/www.yalemedicine.org\/specialists\/long-tu)\n- Luca Pasquini\n- Phillip Chan\n- [Robert Fulbright](https:\/\/www.yalemedicine.org\/specialists\/robert-fulbright)\n- [Serena Susan Spudich](https:\/\/www.yalemedicine.org\/specialists\/serena-spudich)\n- Todd Constable\n\nFor more information about this study, including how to volunteer, contact:\n\nAllison Nelson\n\n- [1-475-375-6808](tel:+14753756808)\n- [longcovidstudies@yale.edu](mailto:longcovidstudies@yale.edu)\n\n- [About Us](https:\/\/www.yalemedicine.org\/about-us)\n- [Contact Us](https:\/\/www.yalemedicine.org\/about-us\/contact-us)\n- [Donate](https:\/\/givetoday.yale.edu\/campaigns\/67232\/donations\/new)\n- [Referring Doctors](https:\/\/www.yalemedicine.org\/for-medical-professionals)\n- [Clinical Keywords](https:\/\/www.yalemedicine.org\/clinical-keywords)\n\n333 Cedar St.\n\nNew Haven, CT 06510\n\n- [Yale School of Medicine](https:\/\/medicine.yale.edu\/)\n- [Yale University](https:\/\/www.yale.edu\/)\n- Website Feedback\n  \n  Manage Cookie Preferences\n\n- [Terms & Privacy Policies](https:\/\/www.yalemedicine.org\/privacy)\n- [Accessibility at YSM](https:\/\/medicine.yale.edu\/myysm\/policies\/communications\/accessibility\/)\n- [Patient Rights](http:\/\/hipaa.yale.edu\/patient-rights)\n- [HIPAA at Yale](http:\/\/hipaa.yale.edu\/)\n- [Non-discrimination Statement](https:\/\/www.yalemedicine.org\/patient-tools\/non-discrimination-statement)\n\nCopyright 2025 Yale Medicine\n\n\\[8891\\]\n\n{\"namedChunks\":\\[\"modules-clinical-trial-details-components-ClinicalTrialDetails-clinicalTrialDetails\"\\]}","attrs_readable_markdown":null,"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1649337633,"attrs_is_republished":0,"attrs_nr_words":"413","attrs_boilerpipe_nr_words":"0","body_ext_links_number":14,"body_int_links_number":18,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":214,"download_ttfb_msec":213,"download_size":18500}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

4 months ago

🚫

ROBOTS BLOCKED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	4.6 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.yalemedicine.org/clinical-trials/magnetic-resonance-imaging-biomarkers-covid
Last Crawled	2025-12-06 16:50:53 (4 months ago)
First Indexed	2022-04-07 13:20:33 (4 years ago)
HTTP Status Code	200
Content
Meta Title	Are you are currently experiencing brain fog from Long COVID? \| Clinical Trials \| Yale Medicine
Meta Description	If you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19. The purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19. Study procedures include (compensation provided): blood draws, MRI with contrast, complete a set of memory tasks and health surveys, and a lumbar puncture (optional). Co-enrollment in our Biobank study, HIC#1502015318 (with separate compensation provided).
Meta Canonical	null
Boilerpipe Text	null
Markdown	[Skip to Main Content](https://www.yalemedicine.org/clinical-trials/magnetic-resonance-imaging-biomarkers-covid#page-container) [1-877-YALEMDS](tel:+1-877-925-3637) Search for [Specialists](https://www.yalemedicine.org/search/specialists)[Fact Sheets](https://www.yalemedicine.org/conditions)[Departments](https://www.yalemedicine.org/departments)[Clinical Trials](https://www.yalemedicine.org/clinical-trials)[News](https://www.yalemedicine.org/news)[Patient Tools](https://www.yalemedicine.org/patient-tools)[For Medical Professionals](https://www.yalemedicine.org/for-medical-professionals) *** [1-877-YALEMDS](tel:+1-877-925-3637) Phase Pilot # Are you are currently experiencing brain fog from Long COVID? - Study HIC\#:2000031278 - Last Updated:11/28/2025 If you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19. The purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19. Study procedures include (compensation provided): - blood draws, - MRI with contrast, - complete a set of memory tasks and health surveys, and - a lumbar puncture (optional). Co-enrollment in our Biobank study, HIC\#1502015318 (with separate compensation provided). ### Contact Us For more information about this study, including how to volunteer, contact: Allison Nelson - Phone Number: [1-475-375-6808](tel:+14753756808) - [longcovidstudies@yale.edu](mailto:longcovidstudies@yale.edu) ### Help Us Discover\! You can help our team find trials you might be eligible for by creating a volunteer profile in MyChart. To get started, [create a volunteer profile](https://medicine.yale.edu/ycci/clinicaltrials/find/mychart/), or contact [helpusdiscover@yale.edu](mailto:helpusdiscover@yale.edu), or call [\+18779788343](tel:+18779788343) for more information. [CREATE A VOLUNTEER PROFILE](https://medicine.yale.edu/ycci/clinicaltrials/volunteer/mychart/) ## Trial Purpose and Description If you are currently experiencing brain fog and symptoms of Long COVID, you may be eligible to join our study looking to better understand neurological and psychological symptoms in people who are recovering from COVID-19. The purpose of this research study is to identify changes on MRI in patients who have cognitive changes and have had COVID-19. Study procedures include (compensation provided): - blood draws, - MRI with contrast, - complete a set of memory tasks and health surveys, and - a lumbar puncture (optional). Co-enrollment in our Biobank study, HIC\#1502015318 (with separate compensation provided). ## Eligibility Criteria - Adults only; - Laboratory documented COVID-19 infection (PCR, rapid test, or pre-vaccine positive antibody test); - Persistent cognitive impairment post-COVID ## Principal Investigator - [![](https://ysm-res.cloudinary.com/image/upload/ar_1:1,c_fill,dpr_auto,f_auto,g_faces:auto,q_auto:eco,w_0.5/v1/yms/prod/a6ed26bf-d85a-4467-9722-c94dbd360a00)Lindsay McAlpine MD, BSc](https://www.yalemedicine.org/specialists/lindsay-mcalpine) ## Sub-Investigators - Felipe Saceanu Leser - [Lindsay McAlpine](https://www.yalemedicine.org/specialists/lindsay-mcalpine) - [Long H. Tu](https://www.yalemedicine.org/specialists/long-tu) - Luca Pasquini - Phillip Chan - [Robert Fulbright](https://www.yalemedicine.org/specialists/robert-fulbright) - [Serena Susan Spudich](https://www.yalemedicine.org/specialists/serena-spudich) - Todd Constable For more information about this study, including how to volunteer, contact: Allison Nelson - [1-475-375-6808](tel:+14753756808) - [longcovidstudies@yale.edu](mailto:longcovidstudies@yale.edu) - [About Us](https://www.yalemedicine.org/about-us) - [Contact Us](https://www.yalemedicine.org/about-us/contact-us) - [Donate](https://givetoday.yale.edu/campaigns/67232/donations/new) - [Referring Doctors](https://www.yalemedicine.org/for-medical-professionals) - [Clinical Keywords](https://www.yalemedicine.org/clinical-keywords) 333 Cedar St. New Haven, CT 06510 - [Yale School of Medicine](https://medicine.yale.edu/) - [Yale University](https://www.yale.edu/) - Website Feedback Manage Cookie Preferences - [Terms & Privacy Policies](https://www.yalemedicine.org/privacy) - [Accessibility at YSM](https://medicine.yale.edu/myysm/policies/communications/accessibility/) - [Patient Rights](http://hipaa.yale.edu/patient-rights) - [HIPAA at Yale](http://hipaa.yale.edu/) - [Non-discrimination Statement](https://www.yalemedicine.org/patient-tools/non-discrimination-statement) Copyright 2025 Yale Medicine \[8891\] {"namedChunks":\["modules-clinical-trial-details-components-ClinicalTrialDetails-clinicalTrialDetails"\]}
Readable Markdown	null
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	en
Author	null
Publish Time	not set
Original Publish Time	2022-04-07 13:20:33 (4 years ago)
Republished	No
Word Count (Total)	413
Word Count (Content)	0
Links
External Links	14
Internal Links	18
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	214
TTFB (ms)	213
Download Size (bytes)	18,500
Shard	140 (laksa)
Root Hash	1108864629008845940
Unparsed URL	org,yalemedicine!www,/clinical-trials/magnetic-resonance-imaging-biomarkers-covid s443