This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Time to first byte" – news · newspapers · books · scholar · JSTOR(January 2017) (Learn how and when to remove this message)
"TTFB" redirects here. For the chemical, see TTFB (chemical).
Time to first byte (TTFB) is a measurement used as an indication of the responsiveness of a webserver or other network resource.
TTFB measures the duration from the user or client making an HTTP request to the first byte of the page being received by the client's browser. This time is made up of the socket connection time, the time taken to send and the time taken to get the first byte of the page.[1] Although sometimes misunderstood as a post-DNS calculation, the original calculation of TTFB in networking always includes network latency in measuring the time it takes for a resource to begin loading.[2] Often, a smaller (faster) TTFB size is seen as a benchmark of a well-configured server application. For example, a lower time to first byte could point to fewer dynamic calculations being performed by the webserver, although this is often due to caching at either the DNS, server, or application level.[1] More commonly, a very low TTFB is observed with statically served web pages, while larger TTFB is often seen with larger, dynamic data requests being pulled from a database.[3]
^ abWagner, Jeremy (22 December 2016). Web Performance in Action: Building Fast Web Pages. Simon and Schuster. ISBN 978-1-63835-376-8.
^Tu, Kenneth; Hasan, Jeffrey (1 January 2008). Performance Tuning and Optimizing ASP.NET Applications. Apress. ISBN 978-1-4302-0758-0.
^Artasanchez, Alberto (19 February 2021). AWS for Solutions Architects: Design your cloud infrastructure by implementing DevOps, containers, and Amazon Web Services. Packt Publishing Ltd. ISBN 978-1-78953-914-1.
and 21 Related for: Time to first byte information
Timetofirstbyte (TTFB) is a measurement used as an indication of the responsiveness of a webserver or other network resource. TTFB measures the duration...
addressed (by rising addresses) in computer memory, counting only byte significance compared to earliness. Endianness is primarily expressed as big-endian (BE)...
The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single...
consecutive bytes and the firstbyte lies on a 4-byte boundary. Data alignment is the aligning of elements according to their natural alignment. To ensure...
code (1 byte), high byte of the register address to read (1 byte), low byte of the register address to read (1 byte) and data (2 bytes = high byte and low...
ByteDance. In March 2012, ByteDance launched its first app, called Neihan Duanzi (内涵段子, lit. "profound gags"). This allowed users to circulate jokes, memes...
1 byte overhead, and a maximum of ⌈n/254⌉ bytes for n data bytes (one byte in 254, rounded up). Consequently, the timeto transmit the encoded byte sequence...
December 1975, he founded Byte Shop, the first personal computer retailer shop. He helped popularize personal computing to the hobbyist and home computing...
Ubisoft Blue Byte GmbH (Blue Byte until 2017) is a German video game holding company owned by Ubisoft. It was founded in October 1988 by Thomas Hertzler...
includes TimetoFirstByte, Speed Index, Timeto Interactive, and Page Complete. Demand for synthetic monitoring has grown exponentially corresponding to the...
one-byte opcodes followed by optional parameters. Intermediate representations such as bytecode may be output by programming language implementations to ease...
In 8-bit codes, it is known as a null byte. The original meaning of this character was like NOP—when sent to a printer or a terminal, it has no effect...
Byte Bandit is a boot sector computer virus created for the Amiga personal computer. It first appeared in January 1988. In contrast to the feared Amiga...
shifts the bytes in each row by a certain offset. For AES, the first row is left unchanged. Each byte of the second row is shifted one to the left. Similarly...
individual bits, byte-level operators perform on strings of eight bits (known as bytes) at a time. The reason for this is that a byte is normally the smallest...
supports the Time Protocol on port 37. The server then sends the time as a 32-bit unsigned integer in binary format and in network byte order, representing...
recorders and players by adding a 4-byte timecode (TC) field to the standard 188-byte packets, resulting in a 192-byte packet. This is what is informally...
one byte, but historically the size of the byte is not strictly defined. Frequently, half, full, double and quadruple words consist of a number of bytes which...
SF with this byte indicating the size of 1-7 bytes data. if the first 2 bytes are 0x1000, then it's a CAN-FD FF, and the following 4 bytes specifies the...
Google introduced metrics such as TimetoFirstByte (TTFB), First Contentful Paint (FCP), First Paint (FP), First Input Delay (FID), Cumulative Layout...
Global Information