Make sure your school district’s IT department allows access to Slideshare and Wistia. GrammarFlip’s videos and slideshows are hosted on these sites, and it will be important that students have access to these resources. Remember that a teacher’s computer may have the ability to access sites that a student’s computer may not, so be sure to check ahead with your IT department before purchasing.
Please ask your district or IT department to allow access to the following URLs. Depending on the district network filters and firewalls, be sure to add these subdomains and domains to the district “whitelist,” “safe search,” and “AllowList.”
- Trackjs (Allows us to track errors and keep Grammarflip running smoothly.)
- Slideshare (Our slideshows are hosted here.)
- Wistia (Our videos are hosted here.)
Additionally, please have your school's IT team add the IP ranges listed below to a safe sender list.
CIDR Start of range End of range
188.8.131.52/24 184.108.40.206 220.127.116.11
18.104.22.168/24 22.214.171.124 126.96.36.199
188.8.131.52/21 184.108.40.206 220.127.116.11