telescope-optics.net valuation and analysis
Robots.txt Information
| Robot | Path | Permission |
| GoogleBot | / | ✔ |
| BingBot | / | ✔ |
| BaiduSpider | / | ✔ |
| YandexBot | / | ✔ |
User-agent: * Crawl-delay: | ||
Meta Tags
| Title | Amateur Telescope |
| Description | "Можда су црне тачке биле птице у лету..." (Maybe the black dots were birds in Optical aberrations in amateur telescopes. Includes principles of physical and optical imaging with detailed review of primary aberrations. Also, aberrations in popular reflecting, refracting and catadioptric telescope objectives, telescope eyepiece |
| Keywords | telescope, optics, diffraction, wavefront, optical aberrations, spherical, coma, astigmatism, chromatism, spherochromatism, mtf, newtonian, cassegrain, gregorian, dall-kirkham, paul-baker, off-axis, tilted, fraunhofer, achromat, distortion, defocus |
Server Information
| WebSite | |
| Host IP | 35.208.39.30 |
| Location | United States |
Related Websites
| Site | Rank |
More to Explore
telescope-optics.net Valuation
|
US$12,068,334
Last updated: 2023-05-04 13:34:46
telescope-optics.net has Semrush global rank of 877,031. telescope-optics.net has an estimated worth of US$ 12,068,334, based on its estimated Ads revenue. telescope-optics.net receives approximately 1,392,501 unique visitors each day. Its web server is located in United States, with IP address 35.208.39.30. According to SiteAdvisor, telescope-optics.net is safe to visit. |
Traffic & Worth Estimates
| Purchase/Sale Value | US$12,068,334 |
| Daily Ads Revenue | US$11,141 |
| Monthly Ads Revenue | US$334,201 |
| Yearly Ads Revenue | US$4,010,401 |
| Daily Unique Visitors | 92,834 |
| Note: All traffic and earnings values are estimates. | |
DNS Records
| Host | Type | TTL | Data |
| telescope-optics.net. | A | 7199 | IP: 35.208.39.30 |
| telescope-optics.net. | NS | 86400 | NS Record: ns1.siteground.net. |
| telescope-optics.net. | NS | 86400 | NS Record: ns2.siteground.net. |
| telescope-optics.net. | MX | 3600 | MX Record: 20 mx20.mailspamprotection.com. |
| telescope-optics.net. | MX | 3600 | MX Record: 10 mx10.mailspamprotection.com. |
| telescope-optics.net. | MX | 3600 | MX Record: 30 mx30.mailspamprotection.com. |
| telescope-optics.net. | TXT | 14400 | TXT Record: v=spf1 a mx ptr include:hostmonster.com ?all |
HtmlToTextCheckTime:2023-05-04 13:34:46
| "Можда су црне тачке биле птице у лету..." (Maybe the black dots were birds in flight) Notes on AMATEUR TELESCOPE OPTICS On an early autumn day of 1608, Hans Lipperhey, a spectacle maker from Middelburg, in the Netherlands’ coastal province of Zeeland, applied before the States General of The Hague for a patent on an "instrument for seeing far". By that time, use of small rounded glass disks to aid the natural eyesight wasn’t new. Those bulging out on both sides, resembling lentil - or " lens " in Latin - have been used to correct for farsightedness since the mid 13th century. The idea of a device for magnifying distant objects may have been already grasped for some time as well. But this was the beginning of something else. In the summer of 1609, Galileo, Harriot, and others, turned the new Dutch invention - the "spyglass" - toward the night sky. The telescope was born. This tale grew old, but our fascination with telescopes has not. Following text is an attempt to give more of an |
HTTP Headers
HTTP/1.1 301 Moved Permanently Server: nginx Date: Tue, 26 Oct 2021 15:11:07 GMT Content-Type: text/html Content-Length: 162 Connection: keep-alive Location: https://telescope-optics.net/ Host-Header: 8441280b0c35cbc1147f8ba998a563a7 X-HTTPS-Enforce: 1 X-Proxy-Cache-Info: DT:1 HTTP/2 200 server: nginx date: Tue, 26 Oct 2021 15:11:07 GMT content-type: text/html content-length: 26244 vary: Accept-Encoding last-modified: Tue, 14 Sep 2021 02:33:21 GMT etag: "6684-5cbeb67b528ed" accept-ranges: bytes x-httpd: 1 host-header: 8441280b0c35cbc1147f8ba998a563a7 x-proxy-cache-info: DT:1 |
telescope-optics.net Whois Information
Domain Name: TELESCOPE-OPTICS.NET Registry Domain ID: 518623731_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.fastdomain.com Registrar URL: http://www.fastdomain.com Updated Date: 2021-06-30T15:43:16Z Creation Date: 2006-07-14T17:42:59Z Registry Expiry Date: 2022-07-14T17:42:59Z Registrar: FastDomain Inc. Registrar IANA ID: 1154 Domain Status: ok https://icann.org/epp#ok Name Server: NS1.US36.SITEGROUND.US Name Server: NS2.US36.SITEGROUND.US DNSSEC: unsigned >>> Last update of whois database: 2021-09-14T14:57:30Z <<< |