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EyeDataHub URL Audit Report

  • Total datasets checked: 251
  • Broken URLs: 59
  • Generated at: 2026-07-27T13:08:34.453808+00:00
  • EyeDataHub version: 0.2.2
  • Git commit: 86889c9415ec73dc814139c6a4b7a5a4746cec92
  • Git dirty: False
  • Timeout / concurrency: 30 s / 8

Status distribution

StatusCount
ok116
no_bot_allowed67
connect_error56
forbidden9
ssl_error3

Status definitions

StatusDefinition
okHTTP 2xx response after redirects; technical reachability only.
forbiddenHTTP 403 response; often bot-blocked, browser-gated, or manually accessible.
no_bot_allowedMendeley Data or Zenodo returned HTTP 403 to automated probes even though manually checked source links were healthy; this reflects bot blocking, not a dead link.
auth_requiredHTTP 401 or known access-controlled host requiring authentication.
not_foundHTTP 404 response; source-page review or replacement URL required.
connect_errorConnection failure during automated request.
ssl_errorTLS/SSL validation failure during automated request.
timeoutNo response within configured timeout.
server_errorHTTP 5xx response from source host.
http_*Other non-success HTTP response requiring source-page review.
no_urlNo URL recorded in the catalog record.

Broken / unreachable

DatasetStatusURL
staressl_errorcecas.clemson.edu/~ahoover
fivesconnect_errorhttps://doi.org/10.6084/m9.figshare.19688169
maples_drconnect_errorhttps://doi.org/10.6084/m9.figshare.24328660
mmrdrconnect_errorhttps://doi.org/10.6084/m9.figshare.29423747
harvard_glaucomaconnect_errorhttps://doi.org/10.7910/DVN/1YRRAC
acrimaconnect_errorfigshare.com/s
farfum_ropconnect_errorhttps://doi.org/10.6084/m9.figshare.c.6721269
oimhsconnect_errorhttps://doi.org/10.6084/m9.figshare.23508453
grapeconnect_errorhttps://doi.org/10.6084/m9.figshare.c.6406319
uwf_tumorconnect_errorhttps://doi.org/10.6084/m9.figshare.27986258
oculoscopeconnect_errorfigshare.com/s
cataract1kconnect_errorsynapse.org
brsetconnect_errorphysionet.org/content
mbrsetconnect_errorphysionet.org/content
harvard_fairvisionconnect_errorophai.hms.harvard.edu/datasets
oct5kconnect_errorhttps://doi.org/10.5522/04/22128671
uwf_zhejiangconnect_errorhttps://doi.org/10.6084/m9.figshare.26936446
uwf_dr_pengconnect_errorhttps://doi.org/10.6084/m9.figshare.31259494
rop_uwf_intelligentconnect_errorhttps://doi.org/10.6084/m9.figshare.25514449
foveaconnect_errorhttps://doi.org/10.6084/m9.figshare.28329338
fundus_avsegconnect_errorhttps://doi.org/10.6084/m9.figshare.27938034
hpmiconnect_errorhttps://doi.org/10.6084/m9.figshare.24800232
drions_dbssl_erroria.uned.es/~ejcarmona
riteconnect_erroreye.medicine.uiowa.edu/rite-dataset
firessl_errorprojects.ics.forth.gr/cvrl
chaksuconnect_errorhttps://doi.org/10.6084/m9.figshare.20123135
hygdconnect_errorhttps://doi.org/10.13026/pdxv-m215
sustech_sysuconnect_errorhttps://doi.org/10.6084/m9.figshare.12570770
jichiconnect_errorhttps://doi.org/10.6084/m9.figshare.4879853
rvo_meconnect_errorhttps://doi.org/10.6084/m9.figshare.29804435.v1
mcoaconnect_errorhttps://doi.org/10.6084/m9.figshare.28123088.v1
as_oct_keratitisconnect_errorhttps://doi.org/10.6084/m9.figshare.c.7036994.v1
tear_meniscusconnect_errorhttps://doi.org/10.6084/m9.figshare.28650536.v2
coph100connect_errorhttps://doi.org/10.6084/m9.figshare.27061084.v1
tom500connect_errorhttps://doi.org/10.6084/m9.figshare.27133389.v1
fprm_retinaconnect_errorhttps://doi.org/10.7303/syn61672643
reta_benchmarkconnect_errorhttps://doi.org/10.6084/m9.figshare.16960855
mshfconnect_errorhttps://doi.org/10.6084/m9.figshare.21507564
ophthalvqaconnect_errorhttps://doi.org/10.6084/m9.figshare.25624917
ophthalwechatconnect_errorhttps://doi.org/10.6084/m9.figshare.29064149
hyamdconnect_errorhttps://doi.org/10.13026/f0dn-8q46
perg_iobaconnect_errorphysionet.org/content
ffa_irconnect_errorhttps://doi.org/10.13026/k5rp-9h43
brset_mbrset_embeddingsconnect_errorphysionet.org/content
soul_octaconnect_errorhttps://doi.org/10.6084/m9.figshare.24893358.v3
amd_dme_3d_octconnect_errorhttps://doi.org/10.6084/m9.figshare.30582035.v1
dryad_gcc_glaucomaconnect_errorhttps://doi.org/10.5061/dryad.xwdbrv1tn
dryad_glaucoma_rnfl_vfconnect_errorhttps://doi.org/10.5061/dryad.q6ft5
dryad_namd_oct_quantconnect_errorhttps://doi.org/10.5061/dryad.2rbnzs7m4
dryad_namd_visual_predictionconnect_errorhttps://doi.org/10.5061/dryad.573n5tb5d
dryad_functional_oct_alzheimerconnect_errorhttps://doi.org/10.5061/dryad.msbcc2ftc
dryad_retinal_vein_cannulationconnect_errorhttps://doi.org/10.5061/dryad.3ffbg79zd
dryad_subretinal_robotconnect_errorhttps://doi.org/10.5061/dryad.w0vt4b91w
dryad_cornea_oct_pentacamconnect_errorhttps://doi.org/10.5061/dryad.tht76hf0c
dryad_aoslo_rpeconnect_errorhttps://doi.org/10.5061/dryad.b41j15h
dryad_uveal_melanoma_coog2connect_errorhttps://doi.org/10.5061/dryad.n8pk0p340
gaze_captureconnect_errorgazecapture.csail.mit.edu/dataset.php
gaze360connect_errorgaze360.csail.mit.edu
fiqsconnect_errorhttps://doi.org/10.6084/m9.figshare.28129847.v1

All findings

DatasetBackendStatusHTTPSource URL
acrimafigshareconnect_errorfigshare.com/s
amd_dme_3d_octfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.30582035.v1
as_oct_keratitisfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.c.7036994.v1
brsetphysionetconnect_errorphysionet.org/content
brset_mbrset_embeddingsphysionetconnect_errorphysionet.org/content
cataract1kmanualconnect_errorsynapse.org
chaksufigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.20123135
coph100figshareconnect_errorhttps://doi.org/10.6084/m9.figshare.27061084.v1
dryad_aoslo_rpedryadconnect_errorhttps://doi.org/10.5061/dryad.b41j15h
dryad_cornea_oct_pentacamdryadconnect_errorhttps://doi.org/10.5061/dryad.tht76hf0c
dryad_functional_oct_alzheimerdryadconnect_errorhttps://doi.org/10.5061/dryad.msbcc2ftc
dryad_gcc_glaucomadryadconnect_errorhttps://doi.org/10.5061/dryad.xwdbrv1tn
dryad_glaucoma_rnfl_vfdryadconnect_errorhttps://doi.org/10.5061/dryad.q6ft5
dryad_namd_oct_quantdryadconnect_errorhttps://doi.org/10.5061/dryad.2rbnzs7m4
dryad_namd_visual_predictiondryadconnect_errorhttps://doi.org/10.5061/dryad.573n5tb5d
dryad_retinal_vein_cannulationdryadconnect_errorhttps://doi.org/10.5061/dryad.3ffbg79zd
dryad_subretinal_robotdryadconnect_errorhttps://doi.org/10.5061/dryad.w0vt4b91w
dryad_uveal_melanoma_coog2dryadconnect_errorhttps://doi.org/10.5061/dryad.n8pk0p340
farfum_ropfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.c.6721269
ffa_irphysionetconnect_errorhttps://doi.org/10.13026/k5rp-9h43
fiqsfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.28129847.v1
fivesfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.19688169
foveafigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.28329338
fprm_retinamanualconnect_errorhttps://doi.org/10.7303/syn61672643
fundus_avsegfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.27938034
gaze360manualconnect_errorgaze360.csail.mit.edu
gaze_capturemanualconnect_errorgazecapture.csail.mit.edu/dataset.php
grapefigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.c.6406319
harvard_fairvisionmanualconnect_errorophai.hms.harvard.edu/datasets
harvard_glaucomadirectconnect_errorhttps://doi.org/10.7910/DVN/1YRRAC
hpmifigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.24800232
hyamdphysionetconnect_errorhttps://doi.org/10.13026/f0dn-8q46
hygdphysionetconnect_errorhttps://doi.org/10.13026/pdxv-m215
jichifigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.4879853
maples_drfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.24328660
mbrsetphysionetconnect_errorphysionet.org/content
mcoafigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.28123088.v1
mmrdrfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.29423747
mshffigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.21507564
oct5kdirectconnect_errorhttps://doi.org/10.5522/04/22128671
oculoscopefigshareconnect_errorfigshare.com/s
oimhsfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.23508453
ophthalvqafigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.25624917
ophthalwechatfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.29064149
perg_iobaphysionetconnect_errorphysionet.org/content
reta_benchmarkfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.16960855
ritemanualconnect_erroreye.medicine.uiowa.edu/rite-dataset
rop_uwf_intelligentfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.25514449
rvo_mefigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.29804435.v1
soul_octafigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.24893358.v3
sustech_sysufigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.12570770
tear_meniscusfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.28650536.v2
tom500figshareconnect_errorhttps://doi.org/10.6084/m9.figshare.27133389.v1
uwf_dr_pengfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.31259494
uwf_tumorfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.27986258
uwf_zhejiangfigshareconnect_errorhttps://doi.org/10.6084/m9.figshare.26936446
aroma_octazenodoforbidden403https://doi.org/10.5281/zenodo.18258095
birdshot_widemanualforbidden403https://doi.org/10.5281/zenodo.19474623
eed_astigmanualforbidden403https://doi.org/10.5281/zenodo.18976824
goblet_cell_segmentationzenodoforbidden403https://doi.org/10.5281/zenodo.18642562
ichallenge_amdmanualforbidden403amd.grand-challenge.org/download
maetschke_glaucoma_octzenodoforbidden403https://doi.org/10.5281/zenodo.1481223
periorbital_segmentationzenodoforbidden403https://doi.org/10.5281/zenodo.13916845
rigadirectforbidden403deepblue.lib.umich.edu/data
syn_octzenodoforbidden403https://doi.org/10.5281/zenodo.17151869
afio_fundus_vesselsmendeleyno_bot_allowed403data.mendeley.com/datasets
airogsdirectno_bot_allowed403zenodo.org/records
amdnet23mendeleyno_bot_allowed403data.mendeley.com/datasets
anterior_segment_smilemendeleyno_bot_allowed403data.mendeley.com/datasets
aptos_arcade_onh_maskszenodono_bot_allowed403zenodo.org/records
bajwa_multi_eyemendeleyno_bot_allowed403data.mendeley.com/datasets
bmrdmendeleyno_bot_allowed403data.mendeley.com/datasets
cataract101_extended_labelszenodono_bot_allowed403zenodo.org/records
chronic_corneal_disordersmendeleyno_bot_allowed403data.mendeley.com/datasets
corn1500manualno_bot_allowed403zenodo.org/records
corn_collectionmanualno_bot_allowed403zenodo.org/records
corn_promanualno_bot_allowed403zenodo.org/records
corneal_curvature_fundusmendeleyno_bot_allowed403data.mendeley.com/datasets
corneal_epithelium_confocalmendeleyno_bot_allowed403data.mendeley.com/datasets
corneal_parameters_kcmendeleyno_bot_allowed403data.mendeley.com/datasets
corneal_tomography_iolmendeleyno_bot_allowed403data.mendeley.com/datasets
cornorbzenodono_bot_allowed403zenodo.org/records
csc_fundus_segmentationmendeleyno_bot_allowed403data.mendeley.com/datasets
data_oct_fundus_glaucomamendeleyno_bot_allowed403data.mendeley.com/datasets
deepdridzenodono_bot_allowed403zenodo.org/records
dme_vqazenodono_bot_allowed403zenodo.org/records
dme_vqa_logicalzenodono_bot_allowed403zenodo.org/records
drac22zenodono_bot_allowed403zenodo.org/records
external_eye_blepharitismendeleyno_bot_allowed403data.mendeley.com/datasets
eye_conjunctiva_segmentationmendeleyno_bot_allowed403data.mendeley.com/datasets
eye_disease_image_mendeleymendeleyno_bot_allowed403data.mendeley.com/datasets
eyecatcher_visual_fieldmendeleyno_bot_allowed403data.mendeley.com/datasets
fimdmendeleyno_bot_allowed403data.mendeley.com/datasets
fociset_pammmendeleyno_bot_allowed403data.mendeley.com/datasets
fundus_domain_generalizationzenodono_bot_allowed403zenodo.org/records
ghana_eye_screeningmendeleyno_bot_allowed403data.mendeley.com/datasets
glaucoma_eye_movementszenodono_bot_allowed403zenodo.org/records
hassan_composite_retinamendeleyno_bot_allowed403data.mendeley.com/datasets
hrf_seg_pluszenodono_bot_allowed403zenodo.org/records
irfdrdzenodono_bot_allowed403zenodo.org/records
jrc_multimodal_vesselsmanualno_bot_allowed403zenodo.org/records
jsieczenodono_bot_allowed403zenodo.org/record
justraigszenodono_bot_allowed403zenodo.org/records
leops_ergmendeleyno_bot_allowed403data.mendeley.com/datasets
mariozenodono_bot_allowed403zenodo.org/records
migs_videozenodono_bot_allowed403zenodo.org/records
msila_fundus_drzenodono_bot_allowed403zenodo.org/records
muredmendeleyno_bot_allowed403data.mendeley.com/datasets
myopic_regression_fundusmendeleyno_bot_allowed403data.mendeley.com/datasets
nehutmendeleyno_bot_allowed403data.mendeley.com/datasets
octa_macula_coronalmendeleyno_bot_allowed403data.mendeley.com/datasets
octavezenodono_bot_allowed403zenodo.org/records
octdlmendeleyno_bot_allowed403data.mendeley.com/datasets
oliveszenodono_bot_allowed403zenodo.org/records
ophtho_readabilityzenodono_bot_allowed403zenodo.org/records
papiladirectno_bot_allowed403zenodo.org/records
paraguay_drzenodono_bot_allowed403zenodo.org/record
popeye_nirzenodono_bot_allowed403zenodo.org/records
rao_fundusmendeleyno_bot_allowed403data.mendeley.com/datasets
retinal_corrugations_octmendeleyno_bot_allowed403data.mendeley.com/datasets
retinal_vessel_robustnesszenodono_bot_allowed403zenodo.org/records
rfmid2zenodono_bot_allowed403zenodo.org/records
riga_pluszenodono_bot_allowed403zenodo.org/records
rop_synthetic_mendeleymendeleyno_bot_allowed403data.mendeley.com/datasets
rosezenodono_bot_allowed403zenodo.org/doi
sics155zenodono_bot_allowed403zenodo.org/records
superccm_finesetmanualno_bot_allowed403zenodo.org/records
thyroid_ophthalmopathy_externalmendeleyno_bot_allowed403data.mendeley.com/datasets
trend2_funduszenodono_bot_allowed403zenodo.org/records
trend_funduszenodono_bot_allowed403zenodo.org/records
ut_fsoctazenodono_bot_allowed403zenodo.org/records
uveitis_smotemendeleyno_bot_allowed403data.mendeley.com/datasets
adam_challengegdriveok200drive.google.com/file
agar300manualok200ieee-dataport.org/open-access
age_challengegdriveok200drive.google.com/file
amd_sdkaggleok200kaggle.com/datasets
angioreportmanualok200tianchi.aliyun.com/dataset
aodkaggleok200kaggle.com/datasets
aptos2019kaggleok200kaggle.com/c
aroigdriveok200drive.google.com/file
behgdriveok200drive.google.com/file
belomanualok200belo-dataset.vercel.app
bidrkaggleok200kaggle.com/datasets
cadismanualok200cataracts-semantic-segmentation2020.grand-challenge.org
casia_iris_v4manualok200hycasia.github.io/dataset
cataractkaggleok200kaggle.com/datasets
cataract_101manualok200ftp.itec.aau.at/datasets
cataract_lmmhuggingfaceok200huggingface.co/datasets
cataracts2017manualok200ieee-dataport.org/open-access
cavrimanualok200dsp.put.poznan.pl/cavri_database-191
chase_db1manualok200researchinnovation.kingston.ac.uk/en
csdihuggingfaceok200huggingface.co/datasets
ddrgdriveok200drive.google.com/drive
deepeyenetmanualok200github.com/Jhhuangkay
dr_arrangedmanualok200tianchi.aliyun.com/dataset
dridbmanualok200ipg.fer.hr/ipg
drishti_gskaggleok200kaggle.com/datasets
drivemanualok200drive.grand-challenge.org/DRIVE
drtidmanualok200github.com/FDU-VTS
duke_amd_chiumanualok200people.duke.edu/~sf59
duke_chiu_boedirectok200people.duke.edu/~sf59
duke_rpedcmanualok200people.duke.edu/~sf59
e_ophthakaggleok200kaggle.com/datasets
erdesmanualok200arxiv.org/abs
eth_xgazemanualok200ait.ethz.ch/xgaze
eyecare_100khuggingfaceok200github.com/DCDmllm
eyepacskaggleok200kaggle.com/c
eyeqgithubok200github.com/HzFu
fairvlmedhuggingfaceok200huggingface.co/datasets
fang_sbsdi_octmanualok200people.duke.edu/~sf59
fundus_105khuggingfaceok200huggingface.co/datasets
fundus_cc_2_5mhuggingfaceok200huggingface.co/datasets
fundus_report_datasethuggingfaceok200huggingface.co/datasets
g1020kaggleok200arxiv.org/abs
gammagdriveok200drive.google.com/file
goalsgdriveok200aistudio.baidu.com/competition
harvard_gdpgdriveok200drive.google.com/drive
hei_medgithubok200github.com/lgiancaUTH
hrfmanualok200www5.cs.fau.de/research
ichallenge_octmanualok200hdmilab.cn/ichallenge
idridmanualok200ieee-dataport.org/open-access
insegcatmanualok200ftp.itec.aau.at/datasets
intraretinal_cystoid_fluidkaggleok200kaggle.com/datasets
keratoconus_detection_kagglekaggleok200kaggle.com/datasets
kermany_octkaggleok200kaggle.com/datasets
lagmanualok200github.com/smilell
lmod_cataract_1khuggingfaceok200huggingface.co/datasets
lmod_cataract_1k_cothuggingfaceok200huggingface.co/datasets
lmod_plusmanualok200kfzyqin.github.io/lmod_plus
lpwmanualok200mpi-inf.mpg.de/de
messidor2manualok200adcis.net/en
mfiddrmanualok200github.com/mfiddr
mgd1kgithubok200mgd1k.github.io/index.html
mm_retinal_reasonhuggingfaceok200huggingface.co/datasets
mpii_gazemanualok200mpi-inf.mpg.de/de
multieyehuggingfaceok200huggingface.co/datasets
nd_iris_0405manualok200tsapps.nist.gov/BDbC
ochidmanualok200imed.nimte.ac.cn/OCHID.html
oct_c8kaggleok200kaggle.com/datasets
oct_cirrusmanualok200people.duke.edu/~sf59
oct_fundus_dme_dr_mexicogithubok200github.com/Traslational-Visual-Health-Laboratory
oct_macular_hole_postsurgerykaggleok200kaggle.com/datasets
oct_ms_jhudirectok200iacl.ece.jhu.edu/~aaron
octa_500manualok200ieee-dataport.org/open-access
octidmanualok200borealisdata.ca/dataverse
ocular_chat_vqahuggingfaceok200huggingface.co/datasets
odir2019kaggleok200kaggle.com/datasets
ophnet2024huggingfaceok200huggingface.co/datasets
ophorahuggingfaceok200huggingface.co/datasets
ophthalmology_eqa_v3huggingfaceok200huggingface.co/datasets
ophthalmology_mcqa_v3huggingfaceok200huggingface.co/datasets
ophthalmology_pubmed_corpushuggingfaceok200huggingface.co/datasets
paired_retinahuggingfaceok200huggingface.co/datasets
palmgdriveok200drive.google.com/file
prime_fp20manualok200ieee-dataport.org/open-access
rasti_octmanualok200drive.google.com/file
ravirgdriveok200ravir.grand-challenge.org/data
rbadgithubok200github.com/Retinal-Research
real_fundusmanualok200github.com/dengzhuo-AI
refuge1_multiratergdriveok200drive.google.com/file
refuge2gdriveok200drive.google.com/file
refuge2018manualok200refuge.grand-challenge.org
retina_age_analysishuggingfaceok200huggingface.co/datasets
retinal_dr_longitudinalhuggingfaceok200huggingface.co/datasets
retouchmanualok200retouch.grand-challenge.org
rfmidkaggleok200kaggle.com/datasets
rimone_dlkaggleok200kaggle.com/datasets
rocmanualok200webeye.ophth.uiowa.edu/ROC
roccmanualok200rocc.grand-challenge.org
rop_ostravakaggleok200kaggle.com/datasets
ru_medical_texts_ophthalmologykaggleok200kaggle.com/datasets
sliddirectok200github.com/xumingyu-hub
smdgkaggleok200kaggle.com/datasets
stage_task1manualok200aistudio.baidu.com/aistudio
stage_task2manualok200aistudio.baidu.com/aistudio
stage_task3manualok200aistudio.baidu.com/aistudio
teyedmanualok200arxiv.org/abs
thoct1800githubok200github.com/SJD095
tian_octdirectok200https://doi.org/10.1371/journal.pone.0133908.s002
toxofunduskaggleok200kaggle.com/datasets
tsukazaki_uwfgithubok200github.com/DateCazuki
ubiris_v2manualok200iris.di.ubi.pt/index.html
umn_parhi_octdirectok200people.ece.umn.edu/users
uwf_drgdriveok200drive.google.com/drive
uwhvfdirectok200github.com/uw-biomedical-ml
vietai_retinal_diseasekaggleok200kaggle.com/competitions
visual_field_testing_experimentkaggleok200kaggle.com/datasets
x_pcrhuggingfaceok200huggingface.co/datasets
drions_dbdirectssl_erroria.uned.es/~ejcarmona
firedirectssl_errorprojects.ics.forth.gr/cvrl
staredirectssl_errorcecas.clemson.edu/~ahoover
note

This page is regenerated by the GitHub Actions URL-audit workflow. Automated reachability does not imply dataset license compatibility, clinical validity, deidentification adequacy, or permission to reuse data. no_bot_allowed means the source host blocked automated probes even though manually checked browser links were healthy; it should not be interpreted as a dead source URL.