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Bypassing proxy or cache

If your organization/library/school uses a proxy server or an internet caching system, such as Cacheflow, KYVL databases will not authenticate properly. Because of the dynamic nature of the databases, it is important that member institutions allow these sites to bypass the proxy or caching system to allow the end user to achieve direct communication with these databases and not a cached version of the site. The sites become very difficult to use if they are not passed through and can return wrong and irrelevant results to your users, or impede access completely.

It is important to add KYVL resources to your "pass-through" list or filter. Consult the documentation of your proxy/caching device for the specific instructions.

A list of domains to whitelist is found below.

EBSCO domains to whitelist

Libraries and districts using firewalls, proxy servers, caching servers, filtering software and other security features will need to whitelist certain domains to provide network users full access (incoming and outgoing traffic) to KYVL's EBSCOhost and affiliated products.

To prevent any issues with access, please do not filter or cache the following domains:

Web domains

Database or service-specific domains


EBSCO Discovery Service, EBSCOhost Integrated Search

EBSCO Discovery Service Catalog Real Time Availability Checking (RTAC)
Please refer to the Real Time Availability Checking (RTAC) - User Guide.

EBSCO Discovery Service Catalog/Institutional Repository using OAI-PMH

EBSCOadmin (For some Reporting functionality)

Link Services

Reference Centers

Resource Management API

Port 210

Consumer Health Complete – Healthology Videos



eBooks and Audiobooks


NoveList Products

Text-to-Speech com

Email Spam Filters

If you are unable to receive emails from EBSCO's case management system NetSuite CRM or EBSCOadmin, you may need to allow the following domains to your institution's spam filter whitelist:



EBSCO system emails (EBSCOadmin, EBSCOhost, etc.)


A complete listing of EBSCO domains for firewalls, proxy servers and whitelists can be found at

The following URLs should be added to member safe lists: com

Allow access to the following ports for TCP, specified by service:

Port Service
80 EBSCO's databases and EBSCOhost Integrated Search
210 EBSCOhost via z39.50
443 EBSCOhost via HTTPS
554 and 1755 Audio Streams available from EBSCO interfaces.
If you cannot view videos, you may need to open all ports for
8080 and 8443 May be needed to support Shibboleth

URLs to whitelist

The following URLs should be added to member safe lists: com

Other domains to whitelist

The URLs below are all associated with the website and related properties:

To facilitate receipt of KYVL emails, please add to your whitelist or safe senders list, along with the following sending IPs used for KYVL emails through the KYVL Member Portal:

Kentucky Virtual Library • 1024 Capital Center Drive, Suite 320 • Frankfort, KY 40601 • 844.400.KYVL toll free •
A program of the Kentucky Council on Postsecondary Education logo