Bulk IP-Address / Reverse DNS Lookup Tool

I’ve created this simple little Google Sheet for conducting reverse DNS / IP address lookup via Google Sheets.

I primarily use this tool for auditing the top IP addresses connecting to my site. If you use this API for your own products, please include your website/contact in the URL.

The sheet works off of an API hosted by me so if you have any requests or if you just enjoy using the free tool, please leave me a comment below.

VolkFi Volk One Specs

These are the theoretical specs of the yet un-released Volk One peer-to-peer smartphone network.

Get a referral code for Volk Fi here.

Estimated shipping date is December 2019.


Size: 6.2 inches
Resolution: (1080 x 2280 pixels) 402ppi
Aspect Ratio: 19:9


Fingerprint, Hall, Accelerometer, Gyroscope, Proximity,
RGB Ambient Light Sensor, Electronic Compass, Sensor Hub


USB C, Support USB Audio
nano-SIM slot


3700 mAh (non-removable)


Bottom-facing speaker
3-microphone with noise cancellation
Support AANC
Dirac HD Sound®
Dirac Power Sound®


OHaptic vibration motor


WiFi, Bluetooth, NFC

Volk Fi: 915Mhz (6.4km text, 3.2km voice, 1.3km video), 2.4Ghz, 5Ghz

GSM: 850Mhz, 900Mhz, 1800Mhz, 1900MHz

FDD-LTE: 1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/29/32/66/71

TD-LTE: 38/39/40/41/42



155.2 x 76.1 x 7.7 mm




Midnight Black / Snow White

Anodized Aluminum & Glass

Operating System



Snapdragon 845 (Octa-core, up to 2.5GHz)


Adreno 630




64GB or 256GB UFS 2.1 2-LANE


Dual 16 x 16 MP
4K resolution video at 30fps
1080P resolution video at 60fps
LED Flash
Aperture: f/1.7


Estimated shipping date is December 2019.
Internet access is available in North America, South America, Australia, and Pacific Islands. Voice & SMS to other networks is available in USA, Canada, and Mexico. We will be adding more countries to this list in the future.
Yes! Your Volk One has a phone number, and can make and receive calls and SMS to old, legacy phones. Even landlines!
We currently support porting US telephone numbers. To port numbers in UK, Australia, New Zealand, or Canada, please email us at [email protected].
Volk Fi network doesn’t require SIM cards, but you may use one on supported carriers
Volk Fi counts data usage and bytes shared via WiFi. Every user gets the amount they share, unlimited. If a Volk user consumes more data than they share in a month, there is a 5GB data cap. After that, the user can pay the super cheap price of $1/GB for additional data.
Volk One has new, long-range radio hardware. This means devices can be very far apart, and the network needs many fewer devices for great coverage.


Volk One Pre-Order Terms and Conditions


FryEye – Eye Condition

According to Zenni Optical:

FryEye happens when we’re exposed to too much blue light from digital screens and artificial light, as well as sunlight and UV rays.

Order Glasses from Zenni Optical
Although FryEye, isn’t a medical condition or term, there is a blue-light related condition known as computer vision syndrome. Despite this condition existing, current academic consensus suggests there are no known health effects of day-to-day exposure to blue light and it is not regarded as a cause of eye disease. Opticians in the United Kingdom have been fined for misleading customers about their blue-light filtering lenses.

Although research on the physical effects of blue-light on the eyes and body is limited, I find myself sensitive to blue light. I typically opt for blue-light filtering lenses on top of my use of blue-light limiting apps such as f.lux.

Scan of SpaceX Starlink Network (AS14593)

Traceroute from Google Cloud West to Starlink (AS14593)
traceroute to (, 30 hops max, 60 byte packets
1 * ( 7.475 ms ( 7.409 ms
2 ( 8.201 ms ( 9.707 ms ae27.cs1.sea1.us.eth.zayo.com ( 7.703 ms
3 ( 7.411 ms ( 7.736 ms ( 7.591 ms
4 * * *
5 host.starlinkisp.net ( 8.195 ms ae27.cs1.sea1.us.eth.zayo.com ( 7.379 ms 7.472 ms

This gives us a small tidbit of info, the network currently resolves to host.starlinkisp.net. We can expect this to be the future domain for StarLink. For now, it 301 redirects to the SpaceX homepage, but I’m monitoring the domain for updates.

Full Network Scan:

sudo nmap -O -sV --version-intensity 5
Starting Nmap 6.40 ( http://nmap.org ) at 2019-02-21 18:56 UTC
Nmap scan report for host.starlinkisp.net (
Host is up (0.0100s latency).
Not shown: 996 closed ports
22/tcp filtered ssh
25/tcp filtered smtp
111/tcp open rpcbind 2-4 (RPC #100000)
179/tcp open bgp?
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at http://www.insecure.org/cgi-bin/servicefp-submit.cgi :
Device type: router|switch|firewall|storage-misc|general purpose|printer
Running (JUST GUESSING): Juniper embedded (95%), Juniper JUNOS 8.X|9.X|10.X|11.X (95%), Acme Packet embedded (92%), FreeBSD 6.X (92%), Epson embedded (90%)
OS CPE: cpe:/h:juniper:m7i cpe:/o:juniper:junos:8 cpe:/o:juniper:junos:9 cpe:/o:juniper:junos:10 cpe:/o:juniper:junos:11 cpe:/o:freebsd:freebsd:6 cpe:/h:epson:stylus_pro_400
Aggressive OS guesses: Juniper M7i router (95%), Juniper Networks J2320 or MX5-T router; or EX2200, EX3200, EX4200, or EX8200 switch (JUNOS 8.5 - 11.2) (95%), Juniper Networks JUNOS 8.5B2.5 (95%), Juniper JUNOS 9.4R2.9 (93%), Acme Packet Net-Net 4250 VoIP session border controller (92%), FreeNAS 0.69RC2 (FreeBSD 6.4-RELEASE) (92%), FreeBSD 6.2-STABLE - 6.4-STABLE (92%), FreeBSD 6.3-RELEASE-p1 (92%), FreeNAS 0.69RC2 (FreeBSD 6.4-RELEASE-p3) (91%), FreeBSD 6.3-STABLE (91%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 7 hops

From this info, we can gather Starlink is likely using a Juniper powered router for this single IP. Unfortunately, connections to port 25 and 22 timeout so no further information could be gathered from that end.

The remaining hosts replied in the following way:

Nmap scan report for host.starlinkisp.net (
Host is up.
All 1000 scanned ports on host.starlinkisp.net ( are filtered
Too many fingerprints match this host to give specific OS details
Nmap scan report for host.starlinkisp.net (
Host is up.
All 1000 scanned ports on host.starlinkisp.net ( are filtered
Too many fingerprints match this host to give specific OS details



Latest Scan from 2018-04-16:


sudo nmap -O -sV --version-intensity 5

Starting Nmap 6.40 ( http://nmap.org ) at 2019-04-16 16:22 UTC
Nmap scan report for sea-fw-0.starlinkisp.net (
Host is up (0.0078s latency).
All 1000 scanned ports on sea-fw-0.starlinkisp.net ( are filtered
Too many fingerprints match this host to give specific OS details

Nmap scan report for host.starlinkisp.net (
Host is up (0.0078s latency).
All 1000 scanned ports on host.starlinkisp.net ( are filtered
Too many fingerprints match this host to give specific OS details

OS and Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 256 IP addresses (2 hosts up) scanned in 48.30 seconds

Fitbit Gemini Release Date, Features, and Specs

On February 4th, Fitbit received FCC approval for a new Bluetooth enabled device labeled “Gemini” according to the documents. The device has been assigned a model number FB415 and given the label “SMART WATCH” in the testing documents.

FCC ID: XRAFB415 , IC: 8542A-FB415

Serial Numbers: EVT-FA2-342 , EVT-FA2-338, EVT-FA7197

Other certification numbers were revealed in the e-labeling documents (below):

  • CMIIT ID: 2019DJ0335
  • KCC: R-C-XRA-FB415
  • IFETEL: RCPFIFB19-0053
  • NCC: CCAI19LP0170T1
  • BIS.gov.in: R-41089931
  • BOCRA: BOCRA/TA/2019/4297

Unfortunately, these licensing items don’t provide much additional information as the ID numbers are still not publically registered. Additionally, no Bluetooth registration exists for the device yet.

We can expect a release soon, as Fitbit typically has less than a few months between their FCC filing and the release of their product, April or May 2019 would be a reasonable timeframe.

From the image of the e-label, we can guess this watch may have a screen width of 300 pixels, the hight is so far unknown.

Facebook Atlas Study: Non-Disclosure Agreement

Jan 31, 2018

“Long Disclosure” – Inside Betabound Flow

Thank you for participating in Facebook’s research about how people use apps. This research helps Facebook understand how people use mobile apps so we can improve our services and introduce new features for millions of people around the world. In order to do this, we ask that you install our research software on your phone. Here, we’ll explain a bit how we collect information from this software and what it means for you.

By installing this software, you’re giving us (Facebook) permission to collect data from your phone that will help us understand how you browse the internet, and how you use the features in the apps on your device. This data will only be used by Facebook, and won’t be shared with unaffiliated third parties.

This means you’re letting us collect information such as which apps are on your phone, how and when you use them, data about your activities and content within those apps, as well as how other people interact with you or your content within those apps. You are also letting us collect information about your internet browsing activity (including the websites you visit and data that is exchanged between your device and those websites) and your use of other online services. There are some instances when we will collect this information even where the app uses encryption, or from within secure browser sessions.

Please enter in your Username and Password below to agree to participate in the research. By doing so, you’re also agreeing to keep this research, and your participation in it, strictly confidential, and not disclose any information about this project to third parties.

We appreciate your participation. You can stop participating in the research at any time. To do so, please contact Betabound at [[email protected]] for uninstall instructions.

Facebook Atlas Study: Tester Participation Agreement

Congratulations on being selected to participate in this unique research project! Centercode, Inc., which owns and operates Betabound, is managing this project on behalf of its client, Facebook, Inc. and its affiliates (“Facebook”). Facebook is conducting this research to gather data about day-to-day mobile phone and app usage in America. Participants in this research project will install a Facebook research app connected by VPN (virtual private network) on their approved mobile devices, and use these connected mobile devices normally for a period of thirty days.

This is your agreement with us (Centercode, Inc.) describing your minimum participation obligations to receive an incentive and other terms and conditions of your participation. Your participation in the research program is VOLUNTARY and you are free to opt out at any time.

Upon your execution of this agreement, you are bound by the following terms and conditions:

  1. REQUIRED PARTICIPATION ACTIVITIES.  You agree to meet the following minimum participation standards:
    1. Install and connect the research app promptly after requested. We will provide you with installation instructions for the research app and VPN connection. Please complete the installation instructions completely after receiving them and within the required time period. Contact us if you have any installation questions.
    2. Allow the installed and connected research app to function each day during a consecutive thirty-day period while you use your device. The research app functions when your phone is on and you are connected to wifi or data with your VPN connection turned on. Participants must use their phone normally with the research app installed and connected each day for thirty (30) consecutive days in order to qualify for the participation incentive described in Section 2.
    3. Respond to our requests. If we need clarification on any item, we will reach out and request additional information. Please respond back in a timely manner.
    4. If requested, uninstall the research app. You must uninstall the research app upon our request or at the request of Facebook.
    5. Your participation is voluntary at all times. You may opt out of the research project and uninstall the research app. and VPN. While your participation is voluntary at all times, if you have not satisfied the project requirements, you will not be entitled to the participation incentive.

  1. PARTICIPATION INCENTIVE.  You agree that you are not entitled to be paid or compensated in cash or otherwise by us or by Facebook except as expressly provided in this agreement. You agree that you are not entitled to be reimbursed for any expenses. If you successfully complete the required participation activities in Section 1 above for the required time period, you will receive a $20 gift card, such as to Amazon.com. Your participation incentive is provided for complete satisfaction of the research project requirements.
  2. DURATION OF THE PROJECT. The duration of the research project is thirty (30) days. However, we reserve the right to discontinue the project at any time, including before or during its term. Unless you are notified in writing that the project has been extended or the project has been terminated early, the project and your ability to qualify for any participation incentive will terminate at the end of its initial thirty-day period, even if you keep the research app installed, connected and/or functioning. You are not entitled to any additional incentive for time periods beyond the initial thirty-day period unless we notify you otherwise in writing that the research project has been extended for an additional period of time. If it is extended and you continue to participate, this agreement will continue to govern the terms and conditions of your participation in the research project as between you and Centercode.
  3. NO CENTERCODE WARRANTIES ON RESEARCH APP AND INSTALLATION AND LIMITATION OF LIABILITY. The research app and installation is Facebook’s and not Centercode’s. We were hired by Facebook as a service provider. YOUR USE OF THE RESEARCH APP AND INSTALLATION IS AT YOUR OWN RISK. YOU AGREE TO HOLD CENTERCODE AND ITS EMPLOYEES, OFFICERS, DIRECTORS, AGENTS, AND REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL LOSS OR DAMAGES OF ANY KIND ARISING OUT OF OR RELATING TO YOUR USE OF THE RESEARCH APP AND INSTALLATION. CENTERCODE’S LIABILITY TO YOU IS LIMITED TO PAYMENT OF PARTICIPATION INCENTIVES OWED TO YOU UNDER THIS AGREEMENT. We make no warranties of any kind, express, implied, or statutory, written or oral, regarding the research app and installation, including but not limited to any implied warranty of merchantability, fitness for a particular purpose, or non-infringement.  
  4. GENERAL TERMS AND CONDITIONS. If any part of this agreement is invalid or unenforceable, all other parts of the agreement will remain in full force and effect. This agreement is governed by the laws of the State of California (excluding its choice of law provisions) and all disputes under this agreement shall be resolved in a court of competent jurisdiction in Orange County, California. This agreement may not be modified or amended except by the written agreement of both parties.


By entering my username and password below to execute this agreement:

  • I confirm my agreement to participate in the Facebook research project;
  • I confirm that I am at least 18 years old, reside in the United States, and have full authority to enter into this agreement and participate in the research project using my device; and
  • I agree to the terms and conditions of this agreement.